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Nsquared

15 CVEs vendor

Monthly

CVE-2026-84764 Sep 02, 11:37 HIGH This Week

Cross-site request forgery in the Simply Schedule Appointments WordPress plugin (versions ≤ 1.6.12.23) enables an unauthenticated remote attacker to perform arbitrary privileged actions on behalf of a logged-in WordPress administrator. By luring an authenticated admin into loading a malicious web page or clicking a crafted link, the attacker's forged request is executed with the victim's full session privileges - potentially manipulating appointment data, customer records, and plugin configuration. No public exploit code or active exploitation has been identified at time of analysis, and the vulnerability is reported by Patchstack.

WordPress CSRF Simply Schedule Appointments Wordpress Plugin Nsquared
NVD
CVSS 3.1
8.8
EPSS
0.1%
CVE-2026-65513 Aug 06, 14:27 HIGH This Week

Unauthenticated stored or reflected cross-site scripting in the Simply Schedule Appointments WordPress plugin (versions up to and including 1.6.12.10) allows a remote, unauthenticated attacker to inject arbitrary JavaScript into pages viewed by victims. The CVSS scope-changed vector (S:C) indicates the injected script executes in the victim's browser context, enabling session hijacking, credential theft, or malicious redirects against authenticated users - including WordPress administrators. No public exploit code or CISA KEV listing has been identified at time of analysis, but the unauthenticated attack path lowers the barrier for opportunistic exploitation significantly.

WordPress XSS Simply Schedule Appointments Wordpress Plugin Nsquared
NVD
CVSS 3.1
7.1
EPSS
0.2%
CVE-2026-65508 Aug 06, 14:27 CRITICAL Act Now

Unauthenticated SQL injection in the Simply Schedule Appointments WordPress plugin (versions up to and including 1.6.12.10) lets remote attackers inject arbitrary SQL through the plugin's appointment/booking request handling, exposing the underlying WordPress database without any login. Because the CVSS vector is PR:N/UI:N with a scope change (S:C) and high confidentiality impact, any WordPress site running a vulnerable version is reachable over the network by anonymous users. There is no public exploit identified at time of analysis, and the CVE is not listed in CISA KEV; EPSS data was not provided.

WordPress SQLi Simply Schedule Appointments Wordpress Plugin Nsquared
NVD
CVSS 3.1
9.3
EPSS
0.3%
CVE-2026-42384 Jun 15, 20:18 HIGH PATCH This Week

Unauthenticated sensitive data exposure in the Simply Schedule Appointments WordPress plugin versions prior to 1.6.11.2 allows remote attackers to retrieve protected information without credentials over the network. The flaw is reported by Patchstack and carries a CVSS 7.5 (high) confidentiality-only impact, with no public exploit identified at time of analysis and the vulnerability is not listed in CISA KEV.

WordPress Information Disclosure Simply Schedule Appointments Wordpress Plugin Nsquared
NVD
CVSS 3.1
7.5
EPSS
0.3%
CVE-2026-39493 Jun 15, 20:17 CRITICAL Act Now

Unauthenticated SQL injection in the Simply Schedule Appointments WordPress plugin (versions ≤ 1.6.9.27) allows remote attackers to inject crafted SQL through plugin endpoints without authentication. The flaw carries a CVSS 3.1 score of 9.3 with scope change, indicating impact beyond the vulnerable component, though only confidentiality (High) and availability (Low) are affected per the vector. No public exploit identified at time of analysis and the vulnerability is not currently listed in CISA KEV.

WordPress SQLi Simply Schedule Appointments Wordpress Plugin Nsquared
NVD
CVSS 3.1
9.3
EPSS
0.4%
CVE-2026-39447 Jun 15, 20:17 HIGH This Week

Unauthenticated reflected/stored cross-site scripting in the Simply Schedule Appointments WordPress plugin (versions ≤ 1.6.10.6) allows remote attackers to inject malicious JavaScript that executes in a victim's browser when they interact with a crafted link or page. Successful exploitation can lead to session hijacking, credential theft, or administrative actions performed in the context of the targeted user. No public exploit identified at time of analysis, and the vulnerability is not listed in CISA KEV.

WordPress XSS Simply Schedule Appointments Wordpress Plugin Nsquared
NVD
CVSS 3.1
7.1
EPSS
0.2%
CVE-2026-39495 Apr 08, 08:30 HIGH This Week

Blind SQL injection in NSquared Simply Schedule Appointments WordPress plugin versions ≤1.6.9.27 allows authenticated attackers with low-privilege access to extract sensitive database contents and potentially trigger denial-of-service conditions. The vulnerability stems from improper neutralization of SQL special elements in user-controlled input. Network-accessible exploitation requires valid credentials but no user interaction. CVSS 8.5 severity reflects high confidentiality impact with scope change, enabling cross-boundary data access. No public exploit identified at time of analysis; low observed exploitation activity (EPSS 0.02%, 6th percentile).

WordPress SQLi Simply Schedule Appointments Wordpress Plugin Nsquared
NVD
CVSS 3.1
8.5
EPSS
0.0%
CVE-2026-59523 Jul 13, 08:41 MEDIUM This Month

Missing Authorization in NSquared's Simply Schedule Appointments WordPress plugin (versions through 1.6.11.11) allows unauthenticated network attackers to bypass access control security levels, yielding limited confidentiality and integrity impact against affected WordPress sites. Reported by Patchstack under CWE-862, the flaw is automatable per CISA's SSVC framework, meaning it can be exploited at scale without human interaction. No public exploit or active exploitation (CISA KEV) has been identified at time of analysis, but the unauthenticated, low-complexity attack surface warrants prompt patching.

WordPress Authentication Bypass Simply Schedule Appointments Wordpress Plugin Nsquared
NVD
CVSS 3.1
6.5
EPSS
0.3%
CVE-2026-57812 Jul 13, 08:41 MEDIUM This Month

Unauthenticated broken access control in the Simply Schedule Appointments WordPress plugin (versions through 1.6.12.4) allows remote attackers to perform unauthorized actions against appointment data, resulting in low-integrity and low-availability impacts. The plugin by NSquared fails to enforce proper authorization checks on one or more endpoints, enabling exploitation without any credentials against default installations. No public exploit code and no CISA KEV listing have been identified at time of analysis, but the low attack complexity and zero privilege requirement lower the barrier for opportunistic abuse.

WordPress Authentication Bypass Simply Schedule Appointments Wordpress Plugin Nsquared
NVD
CVSS 3.1
6.5
EPSS
0.3%
CVE-2026-39694 Apr 08, 08:30 MEDIUM This Month

Missing authorization in NSquared Simply Schedule Appointments WordPress plugin through version 1.6.10.2 allows unauthenticated remote attackers to read sensitive information by exploiting incorrectly configured access control security levels. The vulnerability has a CVSS score of 5.3 (low-moderate) and EPSS probability of 0.02%, placing it in the lower-risk percentile despite public awareness. No active exploitation has been confirmed, and SSVC decision data indicates the issue is automatable but non-critical due to partial technical impact.

WordPress Authentication Bypass Simply Schedule Appointments Wordpress Plugin Nsquared
NVD
CVSS 3.1
5.3
EPSS
0.0%
CVE-2024-13431 Mar 07, 09:15 MEDIUM PATCH This Month

The Appointment Booking Calendar - Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the accent_color and background parameter in. 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.

WordPress XSS Appointment Booking Calendar Wordpress Plugin Nsquared
NVD
CVSS 3.1
6.1
EPSS
0.8%
CVE-2024-4288 May 16, 11:15 MEDIUM PATCH This Month

The Appointment Booking Calendar - Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘link’ parameter in versions up to, and. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.

WordPress XSS Simply Schedule Appointments Wordpress Plugin Nsquared
NVD
CVSS 3.1
6.4
EPSS
0.3%
CVE-2024-2342 Apr 09, 19:15 HIGH PATCH This Week

The Appointment Booking Calendar - Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to SQL Injection via the customer_id parameter in all versions up to, and including,. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity.

WordPress SQLi Simply Schedule Appointments Wordpress Plugin Nsquared
NVD
CVSS 3.1
8.8
EPSS
0.5%
CVE-2024-2341 Apr 09, 19:15 HIGH PATCH This Week

The Appointment Booking Calendar - Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to SQL Injection via the keys parameter in all versions up to, and including, 1.6.7.7. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity.

WordPress SQLi Simply Schedule Appointments Wordpress Plugin Nsquared
NVD
CVSS 3.1
8.8
EPSS
0.6%
CVE-2024-1760 Mar 06, 06:15 MEDIUM PATCH This Month

The Appointment Booking Calendar - Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.6.6.20. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Request Forgery (CSRF) vulnerability could allow attackers to trick authenticated users into performing unintended actions.

WordPress CSRF Simply Schedule Appointments Wordpress Plugin Nsquared
NVD VulDB
CVSS 3.1
4.3
EPSS
0.1%
EPSS 0% CVSS 8.8
HIGH This Week

Cross-site request forgery in the Simply Schedule Appointments WordPress plugin (versions ≤ 1.6.12.23) enables an unauthenticated remote attacker to perform arbitrary privileged actions on behalf of a logged-in WordPress administrator. By luring an authenticated admin into loading a malicious web page or clicking a crafted link, the attacker's forged request is executed with the victim's full session privileges - potentially manipulating appointment data, customer records, and plugin configuration. No public exploit code or active exploitation has been identified at time of analysis, and the vulnerability is reported by Patchstack.

WordPress CSRF Simply Schedule Appointments +2
NVD
EPSS 0% CVSS 7.1
HIGH This Week

Unauthenticated stored or reflected cross-site scripting in the Simply Schedule Appointments WordPress plugin (versions up to and including 1.6.12.10) allows a remote, unauthenticated attacker to inject arbitrary JavaScript into pages viewed by victims. The CVSS scope-changed vector (S:C) indicates the injected script executes in the victim's browser context, enabling session hijacking, credential theft, or malicious redirects against authenticated users - including WordPress administrators. No public exploit code or CISA KEV listing has been identified at time of analysis, but the unauthenticated attack path lowers the barrier for opportunistic exploitation significantly.

WordPress XSS Simply Schedule Appointments +2
NVD
EPSS 0% CVSS 9.3
CRITICAL Act Now

Unauthenticated SQL injection in the Simply Schedule Appointments WordPress plugin (versions up to and including 1.6.12.10) lets remote attackers inject arbitrary SQL through the plugin's appointment/booking request handling, exposing the underlying WordPress database without any login. Because the CVSS vector is PR:N/UI:N with a scope change (S:C) and high confidentiality impact, any WordPress site running a vulnerable version is reachable over the network by anonymous users. There is no public exploit identified at time of analysis, and the CVE is not listed in CISA KEV; EPSS data was not provided.

WordPress SQLi Simply Schedule Appointments +2
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Unauthenticated sensitive data exposure in the Simply Schedule Appointments WordPress plugin versions prior to 1.6.11.2 allows remote attackers to retrieve protected information without credentials over the network. The flaw is reported by Patchstack and carries a CVSS 7.5 (high) confidentiality-only impact, with no public exploit identified at time of analysis and the vulnerability is not listed in CISA KEV.

WordPress Information Disclosure Simply Schedule Appointments +2
NVD
EPSS 0% CVSS 9.3
CRITICAL Act Now

Unauthenticated SQL injection in the Simply Schedule Appointments WordPress plugin (versions ≤ 1.6.9.27) allows remote attackers to inject crafted SQL through plugin endpoints without authentication. The flaw carries a CVSS 3.1 score of 9.3 with scope change, indicating impact beyond the vulnerable component, though only confidentiality (High) and availability (Low) are affected per the vector. No public exploit identified at time of analysis and the vulnerability is not currently listed in CISA KEV.

WordPress SQLi Simply Schedule Appointments +2
NVD
EPSS 0% CVSS 7.1
HIGH This Week

Unauthenticated reflected/stored cross-site scripting in the Simply Schedule Appointments WordPress plugin (versions ≤ 1.6.10.6) allows remote attackers to inject malicious JavaScript that executes in a victim's browser when they interact with a crafted link or page. Successful exploitation can lead to session hijacking, credential theft, or administrative actions performed in the context of the targeted user. No public exploit identified at time of analysis, and the vulnerability is not listed in CISA KEV.

WordPress XSS Simply Schedule Appointments +2
NVD
EPSS 0% CVSS 8.5
HIGH This Week

Blind SQL injection in NSquared Simply Schedule Appointments WordPress plugin versions ≤1.6.9.27 allows authenticated attackers with low-privilege access to extract sensitive database contents and potentially trigger denial-of-service conditions. The vulnerability stems from improper neutralization of SQL special elements in user-controlled input. Network-accessible exploitation requires valid credentials but no user interaction. CVSS 8.5 severity reflects high confidentiality impact with scope change, enabling cross-boundary data access. No public exploit identified at time of analysis; low observed exploitation activity (EPSS 0.02%, 6th percentile).

WordPress SQLi Simply Schedule Appointments +2
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

Missing Authorization in NSquared's Simply Schedule Appointments WordPress plugin (versions through 1.6.11.11) allows unauthenticated network attackers to bypass access control security levels, yielding limited confidentiality and integrity impact against affected WordPress sites. Reported by Patchstack under CWE-862, the flaw is automatable per CISA's SSVC framework, meaning it can be exploited at scale without human interaction. No public exploit or active exploitation (CISA KEV) has been identified at time of analysis, but the unauthenticated, low-complexity attack surface warrants prompt patching.

WordPress Authentication Bypass Simply Schedule Appointments +2
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

Unauthenticated broken access control in the Simply Schedule Appointments WordPress plugin (versions through 1.6.12.4) allows remote attackers to perform unauthorized actions against appointment data, resulting in low-integrity and low-availability impacts. The plugin by NSquared fails to enforce proper authorization checks on one or more endpoints, enabling exploitation without any credentials against default installations. No public exploit code and no CISA KEV listing have been identified at time of analysis, but the low attack complexity and zero privilege requirement lower the barrier for opportunistic abuse.

WordPress Authentication Bypass Simply Schedule Appointments +2
NVD
EPSS 0% CVSS 5.3
MEDIUM This Month

Missing authorization in NSquared Simply Schedule Appointments WordPress plugin through version 1.6.10.2 allows unauthenticated remote attackers to read sensitive information by exploiting incorrectly configured access control security levels. The vulnerability has a CVSS score of 5.3 (low-moderate) and EPSS probability of 0.02%, placing it in the lower-risk percentile despite public awareness. No active exploitation has been confirmed, and SSVC decision data indicates the issue is automatable but non-critical due to partial technical impact.

WordPress Authentication Bypass Simply Schedule Appointments +2
NVD
EPSS 1% CVSS 6.1
MEDIUM PATCH This Month

The Appointment Booking Calendar - Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the accent_color and background parameter in. 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.

WordPress XSS Appointment Booking Calendar +2
NVD
EPSS 0% CVSS 6.4
MEDIUM PATCH This Month

The Appointment Booking Calendar - Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘link’ parameter in versions up to, and. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.

WordPress XSS Simply Schedule Appointments +2
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

The Appointment Booking Calendar - Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to SQL Injection via the customer_id parameter in all versions up to, and including,. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity.

WordPress SQLi Simply Schedule Appointments +2
NVD
EPSS 1% CVSS 8.8
HIGH PATCH This Week

The Appointment Booking Calendar - Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to SQL Injection via the keys parameter in all versions up to, and including, 1.6.7.7. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity.

WordPress SQLi Simply Schedule Appointments +2
NVD
EPSS 0% CVSS 4.3
MEDIUM PATCH This Month

The Appointment Booking Calendar - Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.6.6.20. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Request Forgery (CSRF) vulnerability could allow attackers to trick authenticated users into performing unintended actions.

WordPress CSRF Simply Schedule Appointments +2
NVD VulDB

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