CVE-2026-15345 json
ShortPixel Adaptive Images <= 3.11.5 - Missing Authorization to Authenticated (Subscriber+) Third-Party Plugin Option Modification via 'causer' Parameter
published 2026-08-16 2 mo ago modified 2026-08-20 2 mo ago also EUVD-2026-59903
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 37%
- public exploits
- 0
- none known
Summary
The 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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.43% chance of exploitation in the next 30 days, higher than 37% 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 ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/c3efae8f-ca89-4d8c-a177-6793994b3ea0?source=cve
- plugins.trac.wordpress.org /browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L16
- plugins.trac.wordpress.org /browser/shortpixel-adaptive-images/tags/3.11.5/includes/controllers/notice.class.php#L747
- plugins.trac.wordpress.org /browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L566
- plugins.trac.wordpress.org /browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L87
- plugins.trac.wordpress.org /browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L614
- plugins.trac.wordpress.org /changeset?reponame=&old=3625451%40shortpixel-adaptive-images&new=3625451%40shortpixel-adaptive-images
Sources
- CVE List CVE-2026-15345
- NVD CVE-2026-15345
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.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.