CVE-2025-11734 Missing authorization in Broken Link Checker by AIOSEO – Easily Fix/Monitor Internal and External links
Authenticated contributors can trash arbitrary posts due to missing authorization checks in the Broken Link Checker plugin's REST API.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-11734?
CVE-2025-11734 is a medium-severity missing authorization vulnerability in Broken Link Checker by AIOSEO – Easily Fix/Monitor Internal and External links, published on 18 Nov 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Broken Link Checker by AIOSEO – Easily Fix/Monitor Internal and External links plugin for WordPress is vulnerable to unauthorized post modification due to missing authorization in all versions up to, and including, 1.2.5. This is due to the plugin registering a REST API endpoint that only checks for a broad capability (aioseo_blc_broken_links_page) that is granted to contributor level users, without verifying the user's permission to perform actions on the specific post being targeted. This makes it possible for authenticated attackers, with contributor level access and above, to trash arbitrary posts via the DELETE /wp-json/aioseoBrokenLinkChecker/v1/post endpoint.
Weakness: CWE-862
Which versions are affected by CVE-2025-11734?
How do I fix CVE-2025-11734?
No fix has been published for CVE-2025-11734 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-11734 being exploited?
There is no known exploitation of CVE-2025-11734 in the wild and no public exploit code.
Sources
Also known as GHSA-xhwv-738r-4942.