CVE-2026-91072 EWWW Image Optimizer < 8.8.0 - Admin+ WebP File Rename and Deletion via Unrestricted Path in WebP Migration Handler
Administrators can rename or delete WebP files outside their site's uploads directory, potentially affecting other sites in a multisite network.
- 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-2026-91072?
CVE-2026-91072 is a medium-severity path traversal vulnerability in Unknown EWWW Image Optimizer, published on 30 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a WebP-derivative file migration routine to the current site's own uploads directory, letting an attacker with Administrator-level access rename or delete existing WebP-derivative image files outside that scope, including, on a multisite network, files belonging to a different site they have no access to.
Weakness: CWE-73
Which versions are affected by CVE-2026-91072?
How do I fix CVE-2026-91072?
No fix has been published for CVE-2026-91072 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-91072 being exploited?
There is no known exploitation of CVE-2026-91072 in the wild and no public exploit code.
Sources
Also known as GHSA-6w6r-chf5-m436.