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CVE-2026-85655

MEDIUM 4.3 CVSS 3.1
Published
October 28, 2026
Last modified
November 4, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-862
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Description

The Enable Media Replace plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.2.2. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with author-level access and above, to modify the post_content of any published post referencing the replaced media — including Administrator-owned posts — making changes immediately visible to unauthenticated visitors. The doReplaceQuery() method performs a database-wide search-and-replace across all posts containing the old media URL without any per-post capability check, meaning a single Author-triggered request can silently overwrite a large number of posts that WordPress's standard admin UI and REST API would otherwise forbid that user from editing.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • shortpixel Enable Media Replace — Up to and including 4.2.2

References

  • github.com https://github.com/short-pixel-optimizer/enable-media-replace/releases/tag/v4.2.3
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.1.9/build/shortpixel/replacer/src/Replacer.php#L250
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.1.9/classes/Controller/ReplaceController.php#L253
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.1.9/classes/ViewController/UploadViewController.php#L59
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.1.9/classes/ViewController/UploadViewController.php#L66
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.2.2/build/shortpixel/replacer/src/Replacer.php#L250
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.2.2/classes/Controller/ReplaceController.php#L253
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.2.2/classes/ViewController/UploadViewController.php#L59
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.2.2/classes/ViewController/UploadViewController.php#L66
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/aff42473-63c6-41ca-8312-058f213e2302?source=cve
  • nvd.nist.gov Official NVD record