CVE-2026-110013: Salon Booking System authentication bypass vulnerability
medium 4.8 published 2026-10-16
- Affected versions
- older than 10.31.9
- Fixed in
- 10.31.9
- Latest version
- 10.31.14
- Severity
- Medium · CVSS 4.8
- Active installs
- 2,000+
- Type
- Authentication bypass
What an attacker needs
- Access: None. No account or login is needed (per the CVSS score).
CVSS vector (score by CISA ADP): CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
What to do now
- Update Salon Booking System to 10.31.9 or newer (the latest is 10.31.14): 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 Salon Booking System issue.
With WP-CLI:
wp plugin get salon-booking-system --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 Salon Booking System WordPress plugin before 10.31.9 does not generate its booking-API access tokens from a secure random source, instead deriving them from a value hardcoded in the Salon Booking System WordPress plugin before 10.31.9 and the second at which a token was issued. An attacker able to constrain when a staff or administrator token was issued can compute a valid token and access the booking API as that user, including an administrator.
References
- NVD CVE-2026-110013 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/salon-booking-system (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.