A Cross Site Scripting vulnerability exists in Piwigo before 14.3.0 script because of missing sanitization in create_tag in admin/include/functions.php.
https://github.com/Piwigo/Piwigo/security/advisories/GHSA-8g2g-6f2c-6h7j
https://github.com/Piwigo/Piwigo/compare/14.2.0...14.3.0
https://github.com/Piwigo/Piwigo/commit/5069610aaeb1da6d96d389651a5ba9b38690c580