Webpros
Monthly
Root-level OS command injection in ConfigServer Security & Firewall (CSF) lets a remote attacker who controls a configured allow/deny feed inject arbitrary shell commands through the advanced-rule parser, which executes them as root. The affected code exists both in the original ConfigServer distribution and in the WebPros-maintained fork; WebPros fixed it in version 16.30. There is no public exploit identified at time of analysis and no CISA KEV listing, so this is a high-severity but not yet demonstrated-exploited issue.
Arbitrary file write as root in Plesk's Backup Manager lets an authenticated customer escalate to full server compromise through a path traversal (CWE-36) in the handling of an unsigned backup header. Any low-privileged Plesk customer account can write files to attacker-chosen locations with root privileges, and because Plesk is a widely deployed hosting control panel, the flaw exposes shared and reseller hosting environments to tenant-to-root escalation. No public exploit identified at time of analysis, though the vendor support advisory documents the root cause (unsigned/unvalidated backup header enabling traversal).
Remote code execution in ConfigServer Security & Firewall (CSF) allows an unauthenticated attacker to run arbitrary OS commands as the CSF service account through shell command injection stemming from improperly escaped request URLs. It affects the original ConfigServer distribution and the WebPros-maintained fork containing the vulnerable code, and is fixed in WebPros version 16.30. No public exploit has been identified at time of analysis, but because CSF's login-failure daemon typically runs with root-level privileges, successful exploitation grants full server control.
Local privilege escalation to root affects the Backup Manager component of WebPros Plesk, where a time-of-check-to-time-of-use race condition during backup restore allows an attacker to abuse insecure symlink following and take ownership of arbitrary files or directories. A low-privileged Plesk account holder who wins the race can redirect a root-executed restore operation onto attacker-chosen paths, gaining full root control of the hosting server. No public exploit is identified at time of analysis, and it is not listed in CISA KEV.
Root-level remote code execution in WebPros cPanel is achievable by any mail-enabled account through a SQL injection flaw in the EmailTrack component. An authenticated low-privilege mailbox user can chain the injection into command execution as root, giving full server takeover; the vendor has shipped fixes across five maintenance branches and a HackerOne-sourced report confirms the issue, though no public exploit has been identified at time of analysis.
Eval injection in cPanel's Park API (versions 11.138.0.0 and earlier) enables remote authenticated users to execute arbitrary code with root-level privileges on affected hosting servers. The vulnerability, classified under CWE-95 (Eval Injection) and reported via HackerOne, was disclosed alongside a WebPros vendor advisory on August 27, 2026. No public exploit code or CISA KEV listing has been identified at time of analysis, though the direct path to root execution across a widely deployed hosting platform makes this a critical remediation priority.
Privilege escalation to root in Plesk for Linux (18.0.34 up to 18.0.79.9 / 18.0.80.5) lets a customer- or reseller-level account with shell access run OS command injection (CWE-78) to take over the entire hosting server. Any tenant permitted to use - or to toggle on - their own shell access can break out of their restricted account and reach the root identity, collapsing the isolation between shared-hosting customers and the host. No public exploit has been identified at time of analysis and it is not listed in CISA KEV, but the vendor rates it critical (CVSS 9.0) and has shipped fixed builds.
Authenticated remote attackers against WebPros Plesk (versions before 18.0.79.8, and 18.0.80 through 18.0.80.3) can inject special elements into the DNS zone management functionality to read arbitrary files on the server and escalate their privileges. Because the CVSS scope is changed (S:C), a low-privileged panel user can break out of their intended boundary to compromise the underlying host with full confidentiality, integrity, and availability impact. No public exploit is identified at time of analysis, and EPSS is low (0.29%) with SSVC exploitation status 'none', indicating no observed exploitation yet.
Cross-tenant insecure direct object reference in Plesk's database management interface allows any authenticated hosting panel customer to read and overwrite databases belonging to other customers on the same server, affecting versions 18.0.79.7 and earlier and 18.0.80 through 18.0.80.3. The CVSS 4.0 score of 8.6 reflects high confidentiality and integrity impact with low attack complexity, consistent with the description: a valid tenant account and knowledge of another tenant's database identifier are all that is required. No public exploit code or CISA KEV listing has been identified at time of analysis, but the multi-tenant hosting context amplifies real-world impact significantly.
Remote code execution via symlink following in Plesk's Site Import and Migrator extensions allows network-accessible, low-privilege authenticated users to execute arbitrary code as root on the hosting server. Both webpros:plesk_migrator and webpros:plesk_site_import are affected across all versions per CPE wildcard data, with the flaw rooted in CWE-59 improper link resolution during privileged file operations. No public exploit or active exploitation is confirmed at time of analysis, but the low-complexity, network-accessible attack path and root-level impact make this a high-priority remediation target for Plesk hosting environments.
Privilege escalation to remote code execution in Plesk (18.0.52 through 18.0.79.6, and the 18.0.80.0 branch before 18.0.80.2) lets a low-privileged panel user - a customer or reseller - abuse a flawed database cloning routine to run arbitrary code with the privileges of the database server administrator. Because Plesk multiplexes many tenants onto shared database infrastructure, this breaks tenant isolation and effectively hands a paying customer control of the shared DB admin context. No public exploit or CISA KEV listing has been identified; the vendor CVSS 4.0 score is 9.3 (Critical), though the vector's PR:N conflicts with the description's stated need for a low-privileged account.
Privilege escalation to SQL root context in cPanel (and WP Squared) occurs when the database-rename operation fails to preserve the active SQL mode, permitting a low-privileged authenticated hosting user to have SQL executed with root-level database privileges (CWE-89). This carries a CVSS 4.0 base score of 9.4 with a scope change to subsequent systems, and no public exploit has been identified at time of analysis. It is fixed in the cPanel 138 release series per the vendor advisory.
SQL injection in the Plesk hosting control panel's XML-RPC API allows a remote, low-privileged authenticated user to inject crafted SQL and read arbitrary data from the Plesk database (CWE-89), which the vendor states leads to full compromise of the panel. All Plesk builds prior to 18.0.79.4 are affected, and WebPros has released a fixed version. There is no public exploit identified at time of analysis and the flaw is not listed in CISA KEV, but the very high 9.9 CVSS and scope-change to full panel takeover make this a high-priority patch.
Cross-tenant credential disclosure in WebPros Plesk before 18.0.78.4 allows a low-privileged authenticated customer to enumerate domains belonging to other tenants through the XML-RPC API, because ownership checks are applied only to certain lookup filters and schema validation is skipped for legacy protocol versions. Because affected FTP credentials are stored in cleartext, an attacker retrieves another tenant's FTP password and can pivot to executing code as that tenant's system user. No public exploit has been identified at time of analysis, but the flaw was reported via HackerOne and carries a CVSS 9.9 rating.
Privilege escalation in the Plesk web hosting control panel lets an authenticated low-privileged user abuse an improper authorization flaw in the XML API to inject arbitrary configuration directives, achieving arbitrary file write as root and full compromise of the underlying server. Rated CVSS 9.9 with a scope change, this turns any valid panel account into root on the host; no public exploit identified at time of analysis and it is not listed in CISA KEV.
Cross-tenant privilege escalation in WebPros WordPress Toolkit prior to 6.11.0 (as bundled with cPanel & WHM) allows an authenticated low-privilege account holder to inject arguments into the wp-toolkit CLI and execute commands in the context of another tenant on the same shared server. With a CVSS of 9.9 and scope change, a single compromised hosting account can pivot to siblings on the same host. No public exploit identified at time of analysis and the CVE is not listed in CISA KEV.
Remote code execution in Comet Backup server allows a tenant administrator to inject arbitrary code into the backup agent signing module via insufficient character filtering, ultimately running code with elevated privileges on the Comet server and on connected backup agent devices. The vendor advisory links the issue to the branding configuration path, and no public exploit has been identified at time of analysis. Combined with a Scope:Changed CVSS:3.1 score of 9.0, successful exploitation pivots from a single tenant context into the underlying server and downstream endpoints.
SQL injection in the cPanel/WHM sqloptimizer utility script allows attackers to execute arbitrary SQL queries as the MySQL root user when Slow Query logging is enabled. The flaw affects multiple cPanel branches (11.86 through 11.136), WP Squared, and the CloudLinux 6/CentOS 6 builds, with no public exploit identified at time of analysis. EPSS is low (0.03%) and SSVC marks exploitation as 'none', but technical impact is rated total because the injection runs with full database privileges.
Privilege escalation in cPanel and WP Squared allows an authenticated team member account to elevate privileges to the team owner, granting full control over the hosting account. The flaw stems from improper authorization checks within the team-member privilege model and carries a CVSS 7.1 (high integrity impact). EPSS is very low (0.03%) and no public exploit has been identified at time of analysis, but a vendor patch is available.
Arbitrary file read in cPanel & WHM's `feature::LOADFEATUREFILE` adminbin call allows an attacker to disclose sensitive files by supplying a relative path that bypasses the feature-file name validation. The flaw affects multiple cPanel branches (11.86 through 11.136) as well as WP Squared and the CentOS 6/CloudLinux 6 builds, and was reported responsibly through HackerOne with a vendor patch issued May 8, 2026. There is no public exploit identified at time of analysis, and EPSS is very low (0.04%), consistent with CISA SSVC scoring exploitation as 'none'.
Tenant administrators in Comet Backup 20.11.0 through 26.1.1 and 26.2.1 can impersonate any end-user account across different tenants on the same server through an insecure direct object reference (IDOR) in an API endpoint. The vulnerability enables complete cross-tenant authentication bypass in multi-tenant deployments, allowing unauthorized access to backup data, configurations, and operations of arbitrary users. With CVSS 9.9 (Critical) rating and network-accessible exploitation requiring no privileges, this represents an immediate risk to managed service providers and multi-tenant Comet Backup installations, though no active exploitation has been confirmed via CISA KEV at time of analysis.
HTTP request smuggling in cPanel and WP Squared (by WebPros) enables leakage of credentials from other users sharing the same hosting infrastructure. The CVSS 4.0 vector confirms network-reachable exploitation with no authentication required but with passive user interaction and attack-specific prerequisites; critically, the subsequent-system impact is rated High for both confidentiality and integrity (SC:H/SI:H), indicating that successful exploitation crosses trust boundaries to affect other users or backend components beyond the attacker's own session. No public exploit code has been identified at time of analysis and this CVE is not listed in the CISA KEV catalog, but the scope-change impact makes it a meaningful risk in shared hosting environments where cPanel serves multiple tenants.
Arbitrary Perl code execution in cPanel and WP Squared via insufficient validation of the plugin parameter in the create_user plugin, allowing any authenticated user to execute arbitrary Perl code as their underlying system user account. Vendor-supplied CVSS 4.0 rates this Medium (5.3) with PR:L confirming authentication is required, while SSVC simultaneously rates Technical Impact as total - a notable discrepancy defenders should note. No public exploit has been identified and CISA has not added it to KEV; WebPros released patches across all affected branches on May 8, 2026.
Symlink following in cPanel's Nova plugin (Cpanel::Nova::Connector) allows any authenticated cPanel user to redirect a root-executed chmod to arbitrary filesystem paths by placing a symlink at a user-controlled legacy Nova path within their home directory. Affected are more than a dozen cPanel release trains spanning versions 11.86 through 11.136, plus WP Squared 11.136.x. No public exploit exists and EPSS stands at 0.04%, but CISA's SSVC framework rates the technical impact as total given the potential to set root-level permissions on critical system files, enabling local privilege escalation or denial of service in multi-tenant hosting environments.
Plesk Obsidian versions 8.0.1 through 18.0.73 are vulnerable to a Denial of Service (DoS) condition. [CVSS 7.5 HIGH]
Root-level OS command injection in ConfigServer Security & Firewall (CSF) lets a remote attacker who controls a configured allow/deny feed inject arbitrary shell commands through the advanced-rule parser, which executes them as root. The affected code exists both in the original ConfigServer distribution and in the WebPros-maintained fork; WebPros fixed it in version 16.30. There is no public exploit identified at time of analysis and no CISA KEV listing, so this is a high-severity but not yet demonstrated-exploited issue.
Arbitrary file write as root in Plesk's Backup Manager lets an authenticated customer escalate to full server compromise through a path traversal (CWE-36) in the handling of an unsigned backup header. Any low-privileged Plesk customer account can write files to attacker-chosen locations with root privileges, and because Plesk is a widely deployed hosting control panel, the flaw exposes shared and reseller hosting environments to tenant-to-root escalation. No public exploit identified at time of analysis, though the vendor support advisory documents the root cause (unsigned/unvalidated backup header enabling traversal).
Remote code execution in ConfigServer Security & Firewall (CSF) allows an unauthenticated attacker to run arbitrary OS commands as the CSF service account through shell command injection stemming from improperly escaped request URLs. It affects the original ConfigServer distribution and the WebPros-maintained fork containing the vulnerable code, and is fixed in WebPros version 16.30. No public exploit has been identified at time of analysis, but because CSF's login-failure daemon typically runs with root-level privileges, successful exploitation grants full server control.
Local privilege escalation to root affects the Backup Manager component of WebPros Plesk, where a time-of-check-to-time-of-use race condition during backup restore allows an attacker to abuse insecure symlink following and take ownership of arbitrary files or directories. A low-privileged Plesk account holder who wins the race can redirect a root-executed restore operation onto attacker-chosen paths, gaining full root control of the hosting server. No public exploit is identified at time of analysis, and it is not listed in CISA KEV.
Root-level remote code execution in WebPros cPanel is achievable by any mail-enabled account through a SQL injection flaw in the EmailTrack component. An authenticated low-privilege mailbox user can chain the injection into command execution as root, giving full server takeover; the vendor has shipped fixes across five maintenance branches and a HackerOne-sourced report confirms the issue, though no public exploit has been identified at time of analysis.
Eval injection in cPanel's Park API (versions 11.138.0.0 and earlier) enables remote authenticated users to execute arbitrary code with root-level privileges on affected hosting servers. The vulnerability, classified under CWE-95 (Eval Injection) and reported via HackerOne, was disclosed alongside a WebPros vendor advisory on August 27, 2026. No public exploit code or CISA KEV listing has been identified at time of analysis, though the direct path to root execution across a widely deployed hosting platform makes this a critical remediation priority.
Privilege escalation to root in Plesk for Linux (18.0.34 up to 18.0.79.9 / 18.0.80.5) lets a customer- or reseller-level account with shell access run OS command injection (CWE-78) to take over the entire hosting server. Any tenant permitted to use - or to toggle on - their own shell access can break out of their restricted account and reach the root identity, collapsing the isolation between shared-hosting customers and the host. No public exploit has been identified at time of analysis and it is not listed in CISA KEV, but the vendor rates it critical (CVSS 9.0) and has shipped fixed builds.
Authenticated remote attackers against WebPros Plesk (versions before 18.0.79.8, and 18.0.80 through 18.0.80.3) can inject special elements into the DNS zone management functionality to read arbitrary files on the server and escalate their privileges. Because the CVSS scope is changed (S:C), a low-privileged panel user can break out of their intended boundary to compromise the underlying host with full confidentiality, integrity, and availability impact. No public exploit is identified at time of analysis, and EPSS is low (0.29%) with SSVC exploitation status 'none', indicating no observed exploitation yet.
Cross-tenant insecure direct object reference in Plesk's database management interface allows any authenticated hosting panel customer to read and overwrite databases belonging to other customers on the same server, affecting versions 18.0.79.7 and earlier and 18.0.80 through 18.0.80.3. The CVSS 4.0 score of 8.6 reflects high confidentiality and integrity impact with low attack complexity, consistent with the description: a valid tenant account and knowledge of another tenant's database identifier are all that is required. No public exploit code or CISA KEV listing has been identified at time of analysis, but the multi-tenant hosting context amplifies real-world impact significantly.
Remote code execution via symlink following in Plesk's Site Import and Migrator extensions allows network-accessible, low-privilege authenticated users to execute arbitrary code as root on the hosting server. Both webpros:plesk_migrator and webpros:plesk_site_import are affected across all versions per CPE wildcard data, with the flaw rooted in CWE-59 improper link resolution during privileged file operations. No public exploit or active exploitation is confirmed at time of analysis, but the low-complexity, network-accessible attack path and root-level impact make this a high-priority remediation target for Plesk hosting environments.
Privilege escalation to remote code execution in Plesk (18.0.52 through 18.0.79.6, and the 18.0.80.0 branch before 18.0.80.2) lets a low-privileged panel user - a customer or reseller - abuse a flawed database cloning routine to run arbitrary code with the privileges of the database server administrator. Because Plesk multiplexes many tenants onto shared database infrastructure, this breaks tenant isolation and effectively hands a paying customer control of the shared DB admin context. No public exploit or CISA KEV listing has been identified; the vendor CVSS 4.0 score is 9.3 (Critical), though the vector's PR:N conflicts with the description's stated need for a low-privileged account.
Privilege escalation to SQL root context in cPanel (and WP Squared) occurs when the database-rename operation fails to preserve the active SQL mode, permitting a low-privileged authenticated hosting user to have SQL executed with root-level database privileges (CWE-89). This carries a CVSS 4.0 base score of 9.4 with a scope change to subsequent systems, and no public exploit has been identified at time of analysis. It is fixed in the cPanel 138 release series per the vendor advisory.
SQL injection in the Plesk hosting control panel's XML-RPC API allows a remote, low-privileged authenticated user to inject crafted SQL and read arbitrary data from the Plesk database (CWE-89), which the vendor states leads to full compromise of the panel. All Plesk builds prior to 18.0.79.4 are affected, and WebPros has released a fixed version. There is no public exploit identified at time of analysis and the flaw is not listed in CISA KEV, but the very high 9.9 CVSS and scope-change to full panel takeover make this a high-priority patch.
Cross-tenant credential disclosure in WebPros Plesk before 18.0.78.4 allows a low-privileged authenticated customer to enumerate domains belonging to other tenants through the XML-RPC API, because ownership checks are applied only to certain lookup filters and schema validation is skipped for legacy protocol versions. Because affected FTP credentials are stored in cleartext, an attacker retrieves another tenant's FTP password and can pivot to executing code as that tenant's system user. No public exploit has been identified at time of analysis, but the flaw was reported via HackerOne and carries a CVSS 9.9 rating.
Privilege escalation in the Plesk web hosting control panel lets an authenticated low-privileged user abuse an improper authorization flaw in the XML API to inject arbitrary configuration directives, achieving arbitrary file write as root and full compromise of the underlying server. Rated CVSS 9.9 with a scope change, this turns any valid panel account into root on the host; no public exploit identified at time of analysis and it is not listed in CISA KEV.
Cross-tenant privilege escalation in WebPros WordPress Toolkit prior to 6.11.0 (as bundled with cPanel & WHM) allows an authenticated low-privilege account holder to inject arguments into the wp-toolkit CLI and execute commands in the context of another tenant on the same shared server. With a CVSS of 9.9 and scope change, a single compromised hosting account can pivot to siblings on the same host. No public exploit identified at time of analysis and the CVE is not listed in CISA KEV.
Remote code execution in Comet Backup server allows a tenant administrator to inject arbitrary code into the backup agent signing module via insufficient character filtering, ultimately running code with elevated privileges on the Comet server and on connected backup agent devices. The vendor advisory links the issue to the branding configuration path, and no public exploit has been identified at time of analysis. Combined with a Scope:Changed CVSS:3.1 score of 9.0, successful exploitation pivots from a single tenant context into the underlying server and downstream endpoints.
SQL injection in the cPanel/WHM sqloptimizer utility script allows attackers to execute arbitrary SQL queries as the MySQL root user when Slow Query logging is enabled. The flaw affects multiple cPanel branches (11.86 through 11.136), WP Squared, and the CloudLinux 6/CentOS 6 builds, with no public exploit identified at time of analysis. EPSS is low (0.03%) and SSVC marks exploitation as 'none', but technical impact is rated total because the injection runs with full database privileges.
Privilege escalation in cPanel and WP Squared allows an authenticated team member account to elevate privileges to the team owner, granting full control over the hosting account. The flaw stems from improper authorization checks within the team-member privilege model and carries a CVSS 7.1 (high integrity impact). EPSS is very low (0.03%) and no public exploit has been identified at time of analysis, but a vendor patch is available.
Arbitrary file read in cPanel & WHM's `feature::LOADFEATUREFILE` adminbin call allows an attacker to disclose sensitive files by supplying a relative path that bypasses the feature-file name validation. The flaw affects multiple cPanel branches (11.86 through 11.136) as well as WP Squared and the CentOS 6/CloudLinux 6 builds, and was reported responsibly through HackerOne with a vendor patch issued May 8, 2026. There is no public exploit identified at time of analysis, and EPSS is very low (0.04%), consistent with CISA SSVC scoring exploitation as 'none'.
Tenant administrators in Comet Backup 20.11.0 through 26.1.1 and 26.2.1 can impersonate any end-user account across different tenants on the same server through an insecure direct object reference (IDOR) in an API endpoint. The vulnerability enables complete cross-tenant authentication bypass in multi-tenant deployments, allowing unauthorized access to backup data, configurations, and operations of arbitrary users. With CVSS 9.9 (Critical) rating and network-accessible exploitation requiring no privileges, this represents an immediate risk to managed service providers and multi-tenant Comet Backup installations, though no active exploitation has been confirmed via CISA KEV at time of analysis.
HTTP request smuggling in cPanel and WP Squared (by WebPros) enables leakage of credentials from other users sharing the same hosting infrastructure. The CVSS 4.0 vector confirms network-reachable exploitation with no authentication required but with passive user interaction and attack-specific prerequisites; critically, the subsequent-system impact is rated High for both confidentiality and integrity (SC:H/SI:H), indicating that successful exploitation crosses trust boundaries to affect other users or backend components beyond the attacker's own session. No public exploit code has been identified at time of analysis and this CVE is not listed in the CISA KEV catalog, but the scope-change impact makes it a meaningful risk in shared hosting environments where cPanel serves multiple tenants.
Arbitrary Perl code execution in cPanel and WP Squared via insufficient validation of the plugin parameter in the create_user plugin, allowing any authenticated user to execute arbitrary Perl code as their underlying system user account. Vendor-supplied CVSS 4.0 rates this Medium (5.3) with PR:L confirming authentication is required, while SSVC simultaneously rates Technical Impact as total - a notable discrepancy defenders should note. No public exploit has been identified and CISA has not added it to KEV; WebPros released patches across all affected branches on May 8, 2026.
Symlink following in cPanel's Nova plugin (Cpanel::Nova::Connector) allows any authenticated cPanel user to redirect a root-executed chmod to arbitrary filesystem paths by placing a symlink at a user-controlled legacy Nova path within their home directory. Affected are more than a dozen cPanel release trains spanning versions 11.86 through 11.136, plus WP Squared 11.136.x. No public exploit exists and EPSS stands at 0.04%, but CISA's SSVC framework rates the technical impact as total given the potential to set root-level permissions on critical system files, enabling local privilege escalation or denial of service in multi-tenant hosting environments.
Plesk Obsidian versions 8.0.1 through 18.0.73 are vulnerable to a Denial of Service (DoS) condition. [CVSS 7.5 HIGH]