Description
A Stored XSS vulnerability in forum reward comments in GazellePW (GazellePosterWall) commit 86c4bedf727691b5a97af42a4864869d18446449 allows remote attackers to inject arbitrary JavaScript via the c parameter in /forums.php?action=ajax_get_jf which is later rendered in the data-tooltip attribute in /forums.php?action=viewthread and interpreted as HTML by the Tooltipster configuration.
References
- https://github.com/Mosasauroidea/GazellePW/blob/86c4bedf727691b5a97af42a4864869d18446449/sections/forums/ajax_get_jf.php#L27
- https://github.com/Mosasauroidea/GazellePW/blob/86c4bedf727691b5a97af42a4864869d18446449/sections/forums/thread.php#L725
- https://snaacky.com/1-click-exploit-chain-for-complete-gazellepw-database-compromise