WP Booking Calendar <= 10.10 - Unauthenticated Post-Confirmation Booking Manipulation

published 2025-02-12 20 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-51755

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits: 0; none known

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.

Patch / fix

fixed in 3 links 1

booking_calendar_project booking_calendar 10.10.1
wpbookingcalendar booking_calendar 10.10.1
wpbookingcalendar wp_booking_calendar 10.10.1

plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3234469%40bo… patch

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 20 mo ago (2025-02-12)

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

wpdevelop Booking Calendar

Classification

Weakness

CWE-285 Improper Authorization

Technology feeds

WordPress rss critical rss

References

Sources

CVE List CVE-2024-13821
NVD CVE-2024-13821

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary