CVE-2026-105195: Booking Calendar information disclosure vulnerability
low 2.7 published 2026-10-08
- Affected versions
- 10.15 up to (not including) 11.8.3
- Fixed in
- 11.8.3
- Latest version
- 12.0
- Severity
- Low · CVSS 2.7
- Active installs
- 40,000+
- Type
- Information disclosure
What an attacker needs
- Access: An admin-level account (per the CVSS score).
CVSS vector (score by CISA ADP): CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
What to do now
- Update Booking Calendar to 11.8.3 or newer (the latest is 12.0): Dashboard → Updates, or Plugins → “update now”.
- If you cannot update right away, deactivate it until you can.
- Turn on auto-updates for it: Plugins → “Enable auto-updates” on its row.
- Not sure which version you run? Check your version against every known Booking Calendar issue.
With WP-CLI:
wp plugin get booking --field=version. - If you ran an affected version and something looks off (new admin users, spam pages, redirects), run the free scan below.
The advisory
The Booking Calendar WordPress plugin before 11.8.3 does not adequately restrict which options a lower-privileged user can load through one of its settings handlers, allowing users with the Editor role and above to disclose the values of arbitrary WordPress options, including core site configuration.
References
- NVD CVE-2026-105195 nvd.nist.gov
- WPScan advisory wpscan.com
Related
Ran an affected version? Check your site for signs of a hack
The free scan reads the public side of your site and looks for spam pages, hidden redirects, injected scripts and blacklist entries. No login, no install, about a minute.
Where this data comes from
- CVE record, score and references: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
- Versions and install counts: wordpress.org/plugins/booking (Plugins API), fetched 2026-11-04.
- The summary, “what an attacker needs” and “what to do” sections are our plain-English reading of the record and the plugin's release history; the quoted description is the record's own text. Spot an error? Email Daniel.