ShortPixel Image Optimizer <= 6.3.4 - Authenticated (Contributor+) Settings Import/Export
Priority LOW 24CWE-862Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
The ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'shortpixel_ajaxRequest' AJAX action in all versions up to, and including, 6.3.4. This makes it possible for authenticated attackers, with Contributor-level access and above, to export and import site options.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00319 24th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ShortPixel | ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF | up to 6.3.4 | — | No fix listed | CNA |
- ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF VendorShortPixel Affected up to 6.3.4 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-11378
- 2026-10-03 Alias added: GHSA-44j2-7x4f-pq34
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1f7e9eb5-e222-43fa-a14f-b9cbced6b8f5?source=cve
- https://research.cleantalk.org/CVE-2025-11378
- https://github.com/short-pixel-optimizer/shortpixel-image-optimiser/commit/74263060acafbaf63b4a34f339a8b0dc35f2cad9
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3379473%40shortpixel-image-optimiser&new=3379473%40shortpixel-image-optimiser&sfp_email=&sfph_mail=
More ShortPixel vulnerabilities
- TI-2023-04280 Enable Media Replace < 4.1.3 - Author+ PHP Object Injection CVSS 3.1HIGH 8.8
- TI-2023-00241 Enable Media Replace < 4.0.2 - Author+ Arbitrary File Upload CVSS 3.1HIGH 8.8
- TI-2023-00318 ShortPixel Adaptive Images < 3.6.3 - Reflected XSS CVSS 3.1MEDIUM 6.1
- TI-2026-14215 ShortPixel Image Optimizer <= 6.5.5 - Authenticated (Author+) PHP Object Injection via Nested JSON Post Content CVSS 3.1HIGH 8.8
- TI-2026-83296 PHP object injection in Enable Media Replace WordPress plugin CVSS 3.1HIGH 8.8
- TI-2023-15794 WordPress ShortPixel Adaptive Images Plugin <= 3.7.1 is vulnerable to Cross Site Request Forgery (CSRF) CVSS 3.1HIGH 8.8
Sources
- CVE-2025-11378 · CVE Program
- CVE-2025-11378 · NVD
- FIRST EPSS
- GHSA-44j2-7x4f-pq34 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences