CVE-2021-45357: Piwigo

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

Cross Site Scripting (XSS) vulnerability exists in Piwigo 12.x via the pwg_activity function in include/functions.inc.php.

Affected products

• Piwigo Piwigo: from 12.0.0, up to and including 12.1.0

Published 2022-02-10. Last modified 2026-06-17.