CVE-2026-76780 BeyondSEO <= 1.3.6 - Missing Authorization to Authenticated (Contributor+) Limited Privilege Escalation
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-76780?
CVE-2026-76780 is a medium-severity vulnerability in rankingcoach BeyondSEO – AI SEO to Improve Rankings, Listings & Online Visibility, published on 28 Oct 2026.
Official description
The Beyondseo plugin for WordPress is vulnerable to unauthorized access in versions up to, and including, 1.3.6. This is due to the plugin permanently granting the 'rankingcoach_write_redirectManager' (and sibling rankingcoach_write_* module capabilities) to the Contributor role via BaseModule::defineCapabilities(), whose default role list includes 'contributor', combined with the module's REST endpoints (registered through BaseSubmoduleApi::registerRouteCreate/registerRouteEdit/registerRouteDelete) authorizing state-changing requests solely through checkPermissionsPost(), which only calls current_user_can('rankingcoach_write_<module>') and performs no admin capability, ownership, or additional nonce check inside the callback. This makes it possible for authenticated attackers, with Contributor-level access and above, to elevate their privileges to effectively that of an Administrator with respect to site-wide redirect management — creating, updating, or deleting 301/302 redirects that RedirectManagerHooks::handleRedirects() executes for every frontend visitor on template_redirect, allowing hijacking of arbitrary paths (including /checkout, /wp-login.
Weakness: CWE-269
Which versions are affected by CVE-2026-76780?
How do I fix CVE-2026-76780?
No fix has been published for CVE-2026-76780 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-76780 being exploited?
There is no known exploitation of CVE-2026-76780 in the wild and no public exploit code.
Sources
Also known as GHSA-8q7r-cf36-8v8v.