Description
The WP Booking System – Booking Calendar plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.1.0.3 via the 'id' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract private per-event booking descriptions and booking IDs from any calendar managed by the site.
References7
- plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0…
- plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0…
- plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0…
- plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0…
- plugins.trac.wordpress.org/changeset/3750120/wp-booking-system/…
- plugins.trac.wordpress.org/changeset?old=3730163&old_path=%2Fwp…
- www.wordfence.com/threat-intel/vulnerabilities/id/164a276a-612f…
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - EPSS — exploit probability
- 0% percentile: 17 · as of 10 November 2026
- CWE
- CWE-862
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.