Server-side request forgery in mateuszgbiorczyk Converter for Media – Optimize images |…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
The Converter for Media – Optimize images | Convert WebP & AVIF plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 6.5.1 via the PassthruLoader::load_image_source function. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.
Why it matters now
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 |
|---|---|---|---|---|---|
| mateuszgbiorczyk | Converter for Media – Optimize images | Convert WebP & AVIF | up to 6.5.1 | — | No fix listed | CNA |
- Converter for Media – Optimize images | Convert WebP & AVIF Vendormateuszgbiorczyk Affected up to 6.5.1 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-1356
- 2026-10-03 Alias added: GHSA-cj74-j73p-qf3x
References
More mateuszgbiorczyk vulnerabilities
- TI-2025-12569 Missing authorization in mateuszgbiorczyk Converter for Media – Optimize images | Convert… CVSS 3.1MEDIUM 4.3
Sources
- CVE-2026-1356 · CVE Program
- CVE-2026-1356 · NVD
- FIRST EPSS
- GHSA-cj74-j73p-qf3x · 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