Roundcube Webmail before 1.5.7 and 1.6.x before 1.6.7 allows XSS via SVG animate attributes. https://github.com/roundcube/roundcubemail/commit/43aaaa528646877789ec028d87924ba1accf5242 https://github.com/roundcube/roundcubemail/releases/tag/1.5.7 https://github.com/roundcube/roundcubemail/releases/tag/1.6.7
Created roundcubemail tracking bugs for this issue: Affects: fedora-all [bug 2290827]