CVE-2026-118241lowCWE-639

CVE-2026-118241: low-severity vulnerability in Smush

Smush < 4.3.6 - Author+ Optimization and Restoration of Others' Attachments via IDOR

Published

Follow this CVE+ Monitor Smush

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

28Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 2.7epss 0.3%
The Smush WordPress plugin before 4.3.6 does not verify that a user is authorised to act on the targeted media attachment, only checking a broad upload-files capability, which allows users with the Author role and above to optimise and restore attachments owned by other users, altering their files on disk and consuming the stored backup.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Affected products
Unknown · Smush
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Smush

In the same product, most dangerous first.

CVE-2026-19223HIGHSmush < 4.3.2 - Admin+ Network-Wide RCE via Hub Connector on MultisiteEPSS 0.7%CVE-2026-110039LOWSmush < 4.3.4 - Admin+ Network-Wide Plugin Settings Update on MultisiteEPSS 0.2%