CVE-2026-42322
Piwigo is a full featured open source photo gallery application for the web
- Risk score
- 63/100
- CVSS
- 9.1 v3.1
- Exploit chance (30 days)
- 0.5%
- Published
- 25 Sep 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Piwigo is a full featured open source photo gallery application for the web. Prior to 16.4.0, admin/themes_standard_pages.php validates uploaded logo content by MIME type but reuses the attacker-controlled extension from std_pgs_logo when constructing the stored filename. An authenticated administrator can upload imag…
- Affected
- See advisory
- Fix
- Upgrade the product to 16.4.0 or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 9.1 critical
References
- https://github.com/Piwigo/Piwigo/commit/1e7f7262cb30e6916779f93e66d5d6579ec75a11
- https://github.com/Piwigo/Piwigo/commit/4a13ec9a8f4881ae1f23bdfd24d7b90cd0802cdc
- https://github.com/Piwigo/Piwigo/releases/tag/16.4.0
- https://github.com/Piwigo/Piwigo/security/advisories/GHSA-7w97-5g4p-xqvv
- https://github.com/Piwigo/Piwigo/security/advisories/GHSA-7w97-5g4p-xqvv
Original description
Piwigo is a full featured open source photo gallery application for the web. Prior to 16.4.0, admin/themes_standard_pages.php validates uploaded logo content by MIME type but reuses the attacker-controlled extension from std_pgs_logo when constructing the stored filename. An authenticated administrator can upload image content with a server-executable final extension, causing the file to be placed in the web-accessible logo directory and executed when requested if the web server handles that extension. This can permit arbitrary command execution, data disclosure, modification, persistence, and service disruption. This vulnerability is fixed in 16.4.0.
Last activity 25 Sep 2026. Patch Forecast updates every hour.