Enable Media Replace <= 4.2.2 - Missing Authorization to Authenticated (Author+) Post Content Modification via Media Replacement Workflow

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-85655
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-28 08:16:30 UTC
Updated2026-10-29 02:16:54 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.002720000 probability, percentile 0.195470000 (date 2026-10-28)

Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Shortpixel Enable Media Replace affected 4.2.2 semver Not specified

References

ReferenceSourceLinkTags
www.wordfence.com/threat-intel/vulnerabilities/id/aff42473-63c6-41ca-8312-058f2... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.1.9/classes/ViewControlle... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.2.2/classes/Controller/Re... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.2.2/classes/ViewControlle... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.2.2/build/shortpixel/repl... [email protected] plugins.trac.wordpress.org
github.com/short-pixel-optimizer/enable-media-replace/releases/tag/v4.2.3 [email protected] github.com
plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.1.9/classes/ViewControlle... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.1.9/classes/Controller/Re... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.2.2/classes/ViewControlle... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/enable-media-replace/tags/4.1.9/build/shortpixel/repl... [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Duy Tran (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-04T13:28:15.000ZVendor Notified
CNA2026-10-27T18:45:07.000ZDisclosed

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