CVE-2026-85655 json
Enable Media Replace <= 4.2.2 - Missing Authorization to Authenticated (Author+) Post Content Modification via Media Replacement Workflow
published 2026-10-28 12 d ago modified 2026-11-04 4 d ago also EUVD-2026-111819
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 19%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 11 d ago
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected products
- shortpixel Enable Media Replace
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/aff42473-63c6-41ca-8312-058f213e2302?source=cve
- plugins.trac.wordpress.org /browser/enable-media-replace/tags/4.2.2/build/shortpixel/replacer/src/Replacer.php#L250
- plugins.trac.wordpress.org /browser/enable-media-replace/tags/4.2.2/classes/ViewController/UploadViewController.php#L59
- plugins.trac.wordpress.org /browser/enable-media-replace/tags/4.2.2/classes/ViewController/UploadViewController.php#L66
- plugins.trac.wordpress.org /browser/enable-media-replace/tags/4.2.2/classes/Controller/ReplaceController.php#L253
- plugins.trac.wordpress.org /browser/enable-media-replace/tags/4.1.9/build/shortpixel/replacer/src/Replacer.php#L250
- plugins.trac.wordpress.org /browser/enable-media-replace/tags/4.1.9/classes/ViewController/UploadViewController.php#L59
- plugins.trac.wordpress.org /browser/enable-media-replace/tags/4.1.9/classes/ViewController/UploadViewController.php#L66
- plugins.trac.wordpress.org /browser/enable-media-replace/tags/4.1.9/classes/Controller/ReplaceController.php#L253
- github.com /short-pixel-optimizer/enable-media-replace/releases/tag/v4.2.3
Sources
- CVE List CVE-2026-85655
- NVD CVE-2026-85655
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.