The List Users API of Piwigo 2.9.2 is vulnerable to SQL Injection via the /admin/user_list_backend.php sSortDir_0 parameter. An attacker can exploit this to gain access to the data in a connected MySQL database.
https://github.com/sahildhar/sahildhar.github.io/blob/master/research/reports/Piwigo_2.9.2/Multiple%20SQL%20Injection%20Vulnerabilities%20in%20Piwigo%202.9.2.md
https://github.com/Piwigo/Piwigo/issues/823
https://github.com/Piwigo/Piwigo/commit/33a03e9afb8fb00c9d8f480424d549311fe03d40
Source: Mitre, NVD
Published: 2017-12-21
Updated: 2026-06-17
Base Score: 4
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N
Severity: Medium
Base Score: 4.9
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.00319