CVE-2026-16057 Contest Gallery < 30.0.7 - Author+ Arbitrary Post Deletion via post_cg_youtube_delete_from_library
Author-level users can delete arbitrary posts and pages due to missing per-object authorization checks in the Contest Gallery plugin.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16057?
CVE-2026-16057 is a medium-severity missing authorization vulnerability in Unknown Contest Gallery, published on 3 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The Contest Gallery WordPress plugin before 30.0.7 does not perform per-object capability or nonce checks in one of its post-deletion handlers, gating it only by a coarse role-membership test, which allows any Author-level or higher user to permanently delete arbitrary posts, pages, and other content they do not own.
Weakness: CWE-862
Which versions are affected by CVE-2026-16057?
How do I fix CVE-2026-16057?
No fix has been published for CVE-2026-16057 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-2026-16057 being exploited?
There is no known exploitation of CVE-2026-16057 in the wild and no public exploit code.
Sources
Also known as GHSA-pwq7-3xxm-qxqg.