Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Network-reachable plugin action with a low-privilege (Subscriber) account and no interaction gives AV:N/AC:L/PR:L/UI:N; missing authorization exposes sensitive data (C:H) with limited writes (I:L) and no availability impact.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
Lifecycle Timeline
1DescriptionCVE.org
Subscriber Broken Access Control in Booked <= 3.0.0 versions.
AnalysisAI
Broken access control in the Booked WordPress appointment-scheduling plugin (versions <= 3.0.0, by ThemeRex) lets low-privileged authenticated users (Subscriber role) reach functionality or data they should not, resulting in high confidentiality exposure and limited integrity impact per the CVSS vector. The flaw stems from missing authorization checks (CWE-862) on plugin actions, so any registered site user can abuse it. No public exploit is identified at time of analysis and it is not listed in CISA KEV; the issue was reported through Patchstack.
Technical ContextAI
Booked is a commercial WordPress plugin (vendor ThemeRex, CPE cpe:2.3:a:themerex:booked) that adds calendar-based appointment and reservation management to WordPress sites, exposing AJAX/REST-style actions to logged-in users. The root cause is CWE-862 (Missing Authorization): one or more plugin endpoints perform a sensitive operation without verifying that the caller holds the required capability, relying only on the fact that the user is authenticated. Because WordPress Subscriber is the lowest self-registerable role on many sites, any account can invoke the under-protected action, which is why the CVSS privileges-required metric is Low rather than High.
RemediationAI
No vendor-released patch version is identified in the available data, so confirm the fixed release directly via the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/booked/vulnerability/wordpress-booked-plugin-3-0-0-broken-access-control-vulnerability?_s_id=cve) and update to any version above 3.0.0 once published. As compensating controls until a fix is confirmed: disable open user self-registration (Settings > General > 'Anyone can register') to remove the trivial path to a Subscriber account, which prevents casual attackers but blocks legitimate new sign-ups; consider deactivating the Booked plugin on sites where booking is non-critical, at the cost of losing appointment functionality; and place a virtual-patch / WAF rule (Patchstack or equivalent) in front of the vulnerable plugin actions, accepting that rule tuning may affect legitimate Booked AJAX calls. Restrict and audit existing low-privilege accounts to limit who can invoke the affected endpoints.
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Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-41302
GHSA-wjq5-2fc7-77v9