What’s Vulnerable › Vulnerabilities

CVE-2024-13821: WP Booking Calendar <= 10.10 - Unauthenticated Post-Confirmation Booking Manipulation

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-12 · updated 2026-06-17
• Weakness: CWE-285

Description

The WP Booking Calendar plugin for WordPress is vulnerable to Unauthenticated Post-Confirmation Booking Manipulation in all versions up to, and including, 10.10. This is due to the plugin not properly requiring re-verification after a booking has been made and a change is being attempted. This makes it possible for unauthenticated attackers to manipulate their confirmed bookings, even after they have been approved.

Affected products

• WPdevelop/Oplugins Booking Calendar (WordPress plugin): before 10.10.1 — fixed in 10.10.1

How to fix

Upgrade to a fixed version: WPdevelop/Oplugins Booking Calendar (WordPress plugin) 10.10.1. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3234469%40booking&new=3234469%40booking&sfp_email=&sfph_mail=#file20
• https://www.wordfence.com/threat-intel/vulnerabilities/id/8a0b961e-ccc3-4da0-b007-bbafa133a3a8?source=cve

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