What’s Vulnerable › Vulnerabilities
CVE-2026-91072: EWWW Image Optimizer < 8.8.0 - Admin+ WebP File Rename and Deletion via Unrestricted Path in WebP Migration Handler
- Severity: medium (CVSS 4.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-30 · updated 2026-09-30
- Weakness: CWE-73
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.
Affected products
- EWWW Image Optimizer: before 8.8.0 — fixed in 8.8.0
How to fix
Upgrade to a fixed version: EWWW Image Optimizer 8.8.0. Check the vendor advisory for mitigations.
References
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