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.
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History
Fri, 25 Sep 2026 14:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Piwigo arbitrary file read and remote code execution via insecure image processing | |
| Weaknesses | CWE-20 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-09-25T14:42:29.975Z
Reserved: 2026-09-04T14:50:16.721Z
Link: CVE-2026-85750
No data.
Status : Deferred
Published: 2026-09-25T14:17:20.330
Modified: 2026-09-25T15:17:56.560
Link: CVE-2026-85750
No data.
OpenCVE Enrichment
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Weaknesses