phpBB 2.0.23 includes the session ID in a request to modcp.php when the moderator or administrator closes a thread, which allows remote attackers to hijack the session via a post in the thread containing a URL to a remotely hosted image, which might include the session ID in the Referer header.
| Software | From | Fixed in |
|---|---|---|
| phpbb / phpbb | 2.0.23 | 2.0.23.x |