CVE-2026-12434 Missing authorization in List category posts
Authenticated contributors can expose sensitive post data via shortcode, requiring plugin upgrade to fix.
- 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-2026-12434?
CVE-2026-12434 is a medium-severity missing authorization vulnerability in fernandobt List category posts, published on 16 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The List category posts plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 0.95.0 via the sanitize_status. This makes it possible for authenticated attackers, with contributor-level access and above, to extract titles, full content, excerpts, dates, authors, and custom-field metadata of other users' pending-review, scheduled, and trashed posts by embedding a crafted [catlist] shortcode in their own draft and previewing it. This vulnerability is a bypass of the incomplete fix introduced for CVE-2025-11377 in version 0.93.0.
Weakness: CWE-862
Which versions are affected by CVE-2026-12434?
How do I fix CVE-2026-12434?
No fix has been published for CVE-2026-12434 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-2026-12434 being exploited?
There is no known exploitation of CVE-2026-12434 in the wild and no public exploit code.
Sources
Also known as GHSA-w939-c8qp-6hm2.