CVE-2026-15345ShortPixel Adaptive Images <= 3.11.5 - Missing Authorization to Authenticated (Subscriber+) Third-Party Plugin Option Modification via 'causer' Parameter
- 4.3MediumCVSS base score
- 0.43%Exploitation in 30 daysEPSS · top 62% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Wordfence
- 38 days later
· 38 days later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.43% · top 62% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Affected products
shortpixel · ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization
- affected ≤ 3.11.5
References
References7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c3efae8f-ca89-4d8c-a177-6793994b3ea0?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L16 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/controllers/notice.class.php#L747 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L566 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L87 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L614 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3625451%40shortpixel-adaptive-images&new=3625451%40shortpixel-adaptive-images (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-59903 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-15345)Record last updated .