What is the CVSS score of CVE-2024-13431?

CVE-2024-13431 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.8%.

Which versions of Appointment Booking Calendar are affected by CVE-2024-13431?

Organizations using Appointment Booking Calendar - Simply Schedule Appointments Booking Plugin should be aware of moderate risk from CVE-2024-13431, a cross-site scripting vulnerability rated CVSS…. A patch is available.

How to fix or mitigate CVE-2024-13431?

Within 30 days: Identify affected systems running plugin for WordPress is vulnerable to Reflected Cross-Site S and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Appointment Booking Calendar CVE-2024-13431

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2025-03-07 security@wordfence.com

WordPress XSS Appointment Booking Calendar Wordpress Plugin Nsquared

6.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.1 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:30 vuln.today

Patch released

Mar 28, 2026 - 18:30 nvd

Patch available

CVE Published

Mar 07, 2025 - 09:15 nvd

MEDIUM 6.1

DescriptionCVE.org

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 all versions up to, and including, 1.6.8.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

AnalysisAI

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.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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 all versions up to, and including, 1.6.8.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Affected products include: Nsquared Appointment Booking Calendar.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.