Drupal 6.x before 6.13 does not prevent users from modifying user signatures after the associated comment format has been changed to an administrator-controlled input format, which allows remote authenticated users to inject arbitrary web script, HTML, and possibly PHP code via a crafted user signature.
2009-07-08T15:30:01.500
2025-04-09T00:30:58.490
Deferred
CVSSv2: 6.5 (MEDIUM)
AV:N/AC:L/Au:S/C:P/I:P/A:P
8.0
6.4