Vulnerability Description
Piwigo before v16.4.0 is vulnerable to arbitrary file read and remote code execution in image upload handling when using the Imagick library due to insufficient validation and unsafe processing of user-supplied image files. By abusing format confusion (e.g., disguising SVG content as PNG), an attacker can trigger unintended interpretation of embedded SVG elements that reference local files. In more advanced scenarios, the Imagick support for Magick Scripting Language (MSL) may be abused to process attacker-controlled instructions, potentially leading to unauthorized server-side file writes and remote code execution, depending on configuration. This has been patched in 16.4.0.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/Piwigo/Piwigo/security/advisories/GHSA-j9q6-q52g-g8jw
- https://www.helx.io/en/blog/advisory-piwigo
- https://github.com/Piwigo/Piwigo/security/advisories/GHSA-j9q6-q52g-g8jw
FAQ
What is CVE-2026-85750?
CVE-2026-85750 is a vulnerability with a CVSS score of 7.2 (HIGH). Piwigo before v16.4.0 is vulnerable to arbitrary file read and remote code execution in image upload handling when using the Imagick library due to insufficient validation and unsafe processing of use...
How severe is CVE-2026-85750?
CVE-2026-85750 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-85750?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.