XenForo before 2.3.9 and before 2.2.18 is vulnerable to cross-site scripting (XSS) related to lightbox usage in posts. An attacker can inject malicious scripts that execute when users interact with post content displayed in the lightbox.CreditsUwUReferenceshttps://xenforo.com/community/threads/xenforo-2-3-9-inc-xfmg-2-2-18-released-security-fix.235659/https://www.vulncheck.com/advisories/xenforo-cross-site-scripting-via-lightbox-in-posts
