CVE-2026-90953 Missing authorization in Image Optimizer
Authenticated users can access restricted attachment metadata and site statistics due to missing permission checks in REST routes.
- 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-2026-90953?
CVE-2026-90953 is a medium-severity missing authorization vulnerability in Unknown Image Optimizer, published on 30 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Image Optimizer WordPress plugin before 1.7.7 does not enforce its intended capability check on several of its read REST routes, allowing any authenticated user to read attachment metadata and site-wide statistics that should be restricted to administrators.
Weakness: CWE-200
Which versions are affected by CVE-2026-90953?
How do I fix CVE-2026-90953?
No fix has been published for CVE-2026-90953 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-2026-90953 being exploited?
There is no known exploitation of CVE-2026-90953 in the wild and no public exploit code.
Sources
Also known as GHSA-w64w-5pvm-xhcq.