Ntopng
Monthly
Authenticated non-administrator users of ntopng prior to 6.7.260718 can list and download complete system-configuration backups through the REST v2 endpoints get/system/configurations/list_available_backups.lua and download_backup.lua, which lack the administrator authorization check that the vendor's fix adds. Because the backup payload includes the ntopng.user.* Redis key space, the downloaded archive routinely discloses local-user password hashes and, on deployments where those features are configured, API tokens, TOTP secrets and WebAuthn credential material - enabling account takeover via usable or crackable credentials. Exploitation requires only a valid low-privileged login (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N per independent assessment, PR:L means authenticated but not administrative), with no user interaction and no non-default configuration; no public exploit code or active-exploitation activity (CISA KEV) was identified at time of analysis. The vendor's own CVSS of 8.8 with I:H/A:H is judged slightly overstated, since the flaw is an information-disclosure primitive rather than direct integrity or availability loss.
Any authenticated but non-administrator user on ntopng deployments prior to 6.7.260717 can tamper with threat-intelligence blocklists through the REST endpoint POST /lua/rest/v2/edit/system/edit_blacklist.lua, which performed no administrator check before invoking lists_utils.editList. By manipulating the list_name, list_enabled, url, and list_update parameters, a low-privileged account can repoint blocklist downloads to attacker-controlled content, disable existing blocklists, or suppress scheduled updates, with the changes persisted in Redis and reloaded without a lower-level authorization guard. This yields high integrity and availability impact (CVSS 3.1 8.1, AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H) but no confidentiality loss; no public exploit identified at time of analysis, and the issue is remediated by the vendor-fixed version 6.7.260717.
OS command injection in ntopng prior to 6.7.260717 allows an authenticated non-administrator user to run arbitrary operating-system commands as the ntopng process account, because the vulnerability-scan REST endpoints accepted the scan_ports parameter without an administrator check and passed it through a validator that still permits shell metacharacters. Exploitation requires nmap to be present on the host, and a secondary no-credentials path exists: the affected endpoints accept GET requests while ntopng's CSRF validation only covers POST bodies, so a logged-in victim's browser can be induced to trigger the command. The vulnerability is rated CVSS 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H); no public exploit code or KEV-listed active exploitation was identified at time of analysis, and the issue is fixed in 6.7.260717.
Missing authorization on the host pool bulk-delete REST endpoint in ntopng before 6.7.260717 allows any authenticated low-privileged user to irreversibly destroy all configured host pools and their member bindings via a POST request. The flaw (CWE-862) bypasses ntopng's capability-based access control model, enabling non-administrator accounts to eliminate traffic policy segmentation, rate-limit assignments, and visibility restrictions that network security teams depend on. No public exploit has been identified at time of analysis, and a patch commit is available in version 6.7.260717.
Missing authorization in ntopng's REST v2 API allows any authenticated low-privilege user to permanently delete all configured notification endpoints and recipients, silencing the entire alert pipeline. Affected versions are all ntopng releases before 6.7.260717; the vendor confirmed and patched the flaw via GitHub Security Advisory GHSA-m22w-f647-vx88. No public exploit code has been identified at time of analysis, but the attack requires only a valid user session and a straightforward POST request, making exploitation trivially simple for any authenticated ntopng account holder.
Missing authorization on two REST v2 tag-management endpoints in ntopng 6.7.0-6.7.260717 allows any authenticated low-privilege user to delete or rename tags system-wide, including those created by administrators. The affected endpoints - POST /lua/rest/v2/delete/tag/tag.lua and POST /lua/rest/v2/edit/tag/tag.lua - perform no isAdministrator() check before processing requests. The fix, confirmed in commit 0e41f24b and released as version 6.7.260718, adds the missing privilege gate to both Lua handlers. No public exploit or KEV listing identified at time of analysis.
Open redirect vulnerability in ntopng allows remote attackers to redirect users to arbitrary external websites via a crafted URL parameter. The vulnerability requires user interaction (clicking a malicious link) but affects all versions of ntopng with no authentication barrier, exposing users to phishing and credential harvesting attacks when they trust the legitimacy of the ntopng domain.
An issue was discovered in ntopng 3.4 before 3.4.180617. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. Public exploit code available.
The NetworkInterface::getHost function in NetworkInterface.cpp in ntopng before 3.0 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
ntopng before 3.0 allows HTTP Response Splitting. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
ntopng before 3.0 allows XSS because GET and POST parameters are improperly validated. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.
Cross-site request forgery (CSRF) vulnerability in ntopng through 2.4 allows remote attackers to hijack the authentication of arbitrary users, as demonstrated by admin/add_user.lua,. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
ntopng (aka ntop) before 2.2 allows remote authenticated users to change the login context and gain privileges via the user cookie and username parameter to admin/password_reset.lua. Rated medium severity (CVSS 6.0), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.
Cross-site scripting (XSS) vulnerability in the nDPI traffic classification library in ntopng (aka ntop) before 1.2.1 allows remote attackers to inject arbitrary web script or HTML via the HTTP Host. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. Public exploit code available and EPSS exploitation probability 23.2%.
Cross-site scripting (XSS) vulnerability in lua/host_details.lua in ntopng 1.1 allows remote attackers to inject arbitrary web script or HTML via the host parameter. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.
Authenticated non-administrator users of ntopng prior to 6.7.260718 can list and download complete system-configuration backups through the REST v2 endpoints get/system/configurations/list_available_backups.lua and download_backup.lua, which lack the administrator authorization check that the vendor's fix adds. Because the backup payload includes the ntopng.user.* Redis key space, the downloaded archive routinely discloses local-user password hashes and, on deployments where those features are configured, API tokens, TOTP secrets and WebAuthn credential material - enabling account takeover via usable or crackable credentials. Exploitation requires only a valid low-privileged login (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N per independent assessment, PR:L means authenticated but not administrative), with no user interaction and no non-default configuration; no public exploit code or active-exploitation activity (CISA KEV) was identified at time of analysis. The vendor's own CVSS of 8.8 with I:H/A:H is judged slightly overstated, since the flaw is an information-disclosure primitive rather than direct integrity or availability loss.
Any authenticated but non-administrator user on ntopng deployments prior to 6.7.260717 can tamper with threat-intelligence blocklists through the REST endpoint POST /lua/rest/v2/edit/system/edit_blacklist.lua, which performed no administrator check before invoking lists_utils.editList. By manipulating the list_name, list_enabled, url, and list_update parameters, a low-privileged account can repoint blocklist downloads to attacker-controlled content, disable existing blocklists, or suppress scheduled updates, with the changes persisted in Redis and reloaded without a lower-level authorization guard. This yields high integrity and availability impact (CVSS 3.1 8.1, AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H) but no confidentiality loss; no public exploit identified at time of analysis, and the issue is remediated by the vendor-fixed version 6.7.260717.
OS command injection in ntopng prior to 6.7.260717 allows an authenticated non-administrator user to run arbitrary operating-system commands as the ntopng process account, because the vulnerability-scan REST endpoints accepted the scan_ports parameter without an administrator check and passed it through a validator that still permits shell metacharacters. Exploitation requires nmap to be present on the host, and a secondary no-credentials path exists: the affected endpoints accept GET requests while ntopng's CSRF validation only covers POST bodies, so a logged-in victim's browser can be induced to trigger the command. The vulnerability is rated CVSS 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H); no public exploit code or KEV-listed active exploitation was identified at time of analysis, and the issue is fixed in 6.7.260717.
Missing authorization on the host pool bulk-delete REST endpoint in ntopng before 6.7.260717 allows any authenticated low-privileged user to irreversibly destroy all configured host pools and their member bindings via a POST request. The flaw (CWE-862) bypasses ntopng's capability-based access control model, enabling non-administrator accounts to eliminate traffic policy segmentation, rate-limit assignments, and visibility restrictions that network security teams depend on. No public exploit has been identified at time of analysis, and a patch commit is available in version 6.7.260717.
Missing authorization in ntopng's REST v2 API allows any authenticated low-privilege user to permanently delete all configured notification endpoints and recipients, silencing the entire alert pipeline. Affected versions are all ntopng releases before 6.7.260717; the vendor confirmed and patched the flaw via GitHub Security Advisory GHSA-m22w-f647-vx88. No public exploit code has been identified at time of analysis, but the attack requires only a valid user session and a straightforward POST request, making exploitation trivially simple for any authenticated ntopng account holder.
Missing authorization on two REST v2 tag-management endpoints in ntopng 6.7.0-6.7.260717 allows any authenticated low-privilege user to delete or rename tags system-wide, including those created by administrators. The affected endpoints - POST /lua/rest/v2/delete/tag/tag.lua and POST /lua/rest/v2/edit/tag/tag.lua - perform no isAdministrator() check before processing requests. The fix, confirmed in commit 0e41f24b and released as version 6.7.260718, adds the missing privilege gate to both Lua handlers. No public exploit or KEV listing identified at time of analysis.
Open redirect vulnerability in ntopng allows remote attackers to redirect users to arbitrary external websites via a crafted URL parameter. The vulnerability requires user interaction (clicking a malicious link) but affects all versions of ntopng with no authentication barrier, exposing users to phishing and credential harvesting attacks when they trust the legitimacy of the ntopng domain.
An issue was discovered in ntopng 3.4 before 3.4.180617. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. Public exploit code available.
The NetworkInterface::getHost function in NetworkInterface.cpp in ntopng before 3.0 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
ntopng before 3.0 allows HTTP Response Splitting. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
ntopng before 3.0 allows XSS because GET and POST parameters are improperly validated. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.
Cross-site request forgery (CSRF) vulnerability in ntopng through 2.4 allows remote attackers to hijack the authentication of arbitrary users, as demonstrated by admin/add_user.lua,. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
ntopng (aka ntop) before 2.2 allows remote authenticated users to change the login context and gain privileges via the user cookie and username parameter to admin/password_reset.lua. Rated medium severity (CVSS 6.0), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.
Cross-site scripting (XSS) vulnerability in the nDPI traffic classification library in ntopng (aka ntop) before 1.2.1 allows remote attackers to inject arbitrary web script or HTML via the HTTP Host. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. Public exploit code available and EPSS exploitation probability 23.2%.
Cross-site scripting (XSS) vulnerability in lua/host_details.lua in ntopng 1.1 allows remote attackers to inject arbitrary web script or HTML via the host parameter. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.