CVE-2026-10823 YMC Smart Filter < 3.11.3 - Unauthenticated Private/Draft Post Disclosure
Unauthenticated attackers can access private and draft post content via an unauthorized REST API endpoint in the YMC Filter WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-10823?
CVE-2026-10823 is a high-severity missing authorization vulnerability in Unknown YMC Filter, published on 26 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The YMC Filter WordPress plugin before 3.11.3 does not properly authorize access to one of its REST API endpoints and does not validate a user-supplied query parameter, allowing unauthenticated attackers to retrieve the titles and content of private, draft, and other non-public posts.
Which versions are affected by CVE-2026-10823?
How do I fix CVE-2026-10823?
No fix has been published for CVE-2026-10823 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-2026-10823 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10823 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-cxq8-qm2q-phgj.