How to fix 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.

Is WordPress 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 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users.

CVE-2024-13431

MEDIUM

2025-03-07 [email protected]

WordPress XSS

6.1

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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

DescriptionNVD

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.

CVE-2024-13431 vulnerability details – vuln.today

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