Piwigo is a full featured open source photo gallery application for the web. In Piwigo 15.6.0, using the password reset function allows sending a password-reset URL by entering an existing username or email address. However, the hostname used to construct this URL is taken from the HTTP request's Host header and is not validated at all. Therefore, an attacker can send a password-reset URL with a modified hostname to an existing user whose username or email the attacker knows or guesses. This issue has been patched in version 15.7.0.
Fix
Patch, vendor advisory and mitigation references on NVD 3
- https://github.com/Piwigo/Piwigo/commit/9d2565465efc3570963ff431b45cad21610f6692 Patch
- https://github.com/Piwigo/Piwigo/security/advisories/GHSA-9986-w7jf-33f6 Exploit, Vendor Advisory
- https://github.com/Piwigo/Piwigo/security/advisories/GHSA-9986-w7jf-33f6 Exploit, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.8 · piwigoNVD modified 2026-10-19 13:10
Affected (CPE criteria) 1
cpe:2.3:a:piwigo:piwigo:15.6.0:*:*:*:*:*:*:*
References 3
- https://github.com/Piwigo/Piwigo/commit/9d2565465efc3570963ff431b45cad21610f6692 Patch
- https://github.com/Piwigo/Piwigo/security/advisories/GHSA-9986-w7jf-33f6 Exploit, Vendor Advisory
- https://github.com/Piwigo/Piwigo/security/advisories/GHSA-9986-w7jf-33f6 Exploit, Vendor Advisory