Medium severity · published Sep 30, 2026
CVE-2026-91072
EWWW Image Optimizer < 8.8.0 - Admin+ WebP File Rename and Deletion via Unrestricted Path in WebP Migration Handler
4.4
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L
Attack vector
Network
Complexity
High
Privileges
High
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EI
EWWW Image Optimizer ·
before 8.8.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-91072
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-91072
exploit
https://wpscan.com/vulnerability/c77770c5-d1af-47f6-9aee-a50d4a919732/
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