CVE-2026-118241

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

Published Nov 11, 2026 CVSS 3.1 · 2.7 Low EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions smush
Vendors & Products Wordpress-extensions
Wordpress-extensions smush
Type Values Removed Values Added
Weaknesses CWE-639
Metrics cvssV3_1

{'score': 2.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N'}

Type Values Removed Values Added
Description 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.
Title Smush < 4.3.6 - Author+ Optimization and Restoration of Others' Attachments via IDOR
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Nov 11, 2026, 11:40 AM
Reserved
Oct 27, 2026, 7:56 PM
Status
Deferred
Published
Nov 11, 2026, 6:17 AM
Modified
Nov 12, 2026, 6:49 PM