Description
XenForo before 2.2.17 and 2.3.1 allows open redirect via a specially crafted URL. The getDynamicRedirect() function does not adequately validate the redirect target, allowing attackers to redirect users to arbitrary external sites using crafted URLs containing newlines, user credentials, or host mismatches.
Problem types
URL Redirection to Untrusted Site ('Open Redirect')
Product status
2.3.0 (semver) before 2.3.1
Credits
mattrogowski
Jake B.
ThemeHouse
References
xenforo.com/.../xenforo-2-2-17-released-security-fix.227797/ (XenForo 2.2.17 Released (Security Fix))
www.vulncheck.com/...ro-open-redirect-via-getdynamicredirect (VulnCheck Advisory: XenForo Open Redirect via getDynamicRedirect)