5.3

CVE-2024-13821: wordpress booking Improper Authorization

CVSS: 5.3v3.1MediumAnalyzed
Published 12-02-2025Last modified 03-06-2026
Open JSON

Vulnerability summary

CVE-2024-13821 is a medium (CVSS 5.3) Improper Authorization vulnerability in wordpress booking. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 33.8% of scored vulnerabilities. Fixed in 10.10.1.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.41%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-02-2025
    PublishedVulnerability first disclosed.
  2. 03-06-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

34%

Versus all other CVEs

30-day change

0.00 pp

From 0.41% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.41%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Wordpress1 product
  • booking≤ 10.10 (fixed in 10.10.1)
Wpbookingcalendar1 product
Wpdevelop1 product

3 vendors · 3 products

References

3 links