CVE-2026-13161
Description
The TrueBooker – Appointment Booking and Scheduler System plugin for WordPress is vulnerable to generic SQL Injection via the 'alldata[truebooker_user]' parameter in all versions up to, and including, 1.2.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The check_ajax_referer() nonce guard does not constitute an authentication or authorization barrier because the nonce is exposed to unauthenticated visitors on TrueBooker front-end booking pages; exploitation additionally requires that the required booking fields (category, service, person, date, and time slot) be present in the alldata POST parameter so that execution reaches the vulnerable SQL query branch.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.0/main/function_ajax.php#L14741
- https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.0/main/function_ajax.php#L14756
- https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.0/main/function_ajax.php#L14866
- https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.2/main/function_ajax.php#L14741
- https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.2/main/function_ajax.php#L14756
- https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.2/main/function_ajax.php#L14866
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3591506%40truebooker-appointment-booking%2Ftrunk%2Fmain%2Ffunction_ajax.php&old=3581699%40truebooker-appointment-booking%2Ftrunk%2Fmain%2Ffunction_ajax.php&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9b0e973b-f0bf-44d1-b964-e259f68291aa?source=cve
CWEs
CWE-89
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.