ShortPixel Adaptive Images <= 3.11.5 - Missing Authorization to Authenticated (Subscriber+) Third-Party Plugin Option Modification via 'causer' Parameter

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-15345
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-16 06:16:50 UTC
Updated2026-08-16 06:16:50 UTC
DescriptionThe ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.11.5. 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 subscriber-level access and above, to modify configuration options of third-party plugins including ShortPixel Image Optimizer, Autoptimize, WP Rocket, Imagify, and LiteSpeed Cache, as well as the plugin's own API key and account binding. Exploitation requires the respective third-party plugins to be installed, as the impact against those plugins' settings is only reachable when those plugins are present.

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

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.3MEDIUMCVSS: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 ShortPixel Adaptive Images WebP AVIF CDN Image Optimization affected 3.11.5 semver Not specified

References

ReferenceSourceLinkTags
www.wordfence.com/threat-intel/vulnerabilities/id/c3efae8f-ca89-4d8c-a177-67939... [email protected] www.wordfence.com
plugins.trac.wordpress.org/changeset [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actio... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actio... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actio... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actio... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/contr... [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: Wordfence PRISM (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-07-09T20:41:23.000ZVendor Notified
CNA2026-08-15T16:26:13.000ZDisclosed

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