Title: Ultimate Bulletin Board Cross-Agent Scripting Vulnerability
Severity: MODERATE
Description:
UBB (Ultimate Bulletin Board) is commercial web forums/community software that is written in Perl. It runs on various Unix/Linux variants, as well as Microsoft Windows NT/2000.
UBB is prone to cross-agent scripting attacks.
UBB allows users to insert links to images inside of messages. The syntax to do this is [IMG]url[/IMG].
However, Encoded HTML tags are not adequately filtered from image links by UBB, making it is possible to insert arbitrary script code in forum messages/replies. The malicious script code will be executed in the browser of the user viewing the message, in the context of the site running UBB.
This makes it possible for a malicious user to post a message which is capable of stealing another legitimate user's cookie-based authentication credentials.
Affected Products:
- Infopop Ultimate Bulletin Board 5.4.7 e
- Infopop Ultimate Bulletin Board 5.43.0
- Infopop Ultimate Bulletin Board 6.0.0
- Infopop Ultimate Bulletin Board 6.0.0 Beta
- Infopop Ultimate Bulletin Board 6.0.1
- Infopop Ultimate Bulletin Board 6.0.2
- Infopop Ultimate Bulletin Board 6.0.3
- Infopop Ultimate Bulletin Board 6.0.4 f
- Infopop Ultimate Bulletin Board 6.2.0 .0 Beta Release 1.0
References:
- Infopop: Ultimate Bulletin Board Homepage
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