L-Forum "Enable HTML in messages" cross-site scripting

lforum-html-message-xss (9838) The risk level is classified as MediumMedium Risk

Description:

L-Forum is vulnerable to cross-site scripting. If the "Enable HTML in messages" option is enabled, a remote attacker could embed malicious script within the From, E-Mail, Subject, and Body fields of a message to cause the script to be executed in the victim's Web browser within the security context of the hosting site, once message is viewed.


Consequences:

Gain Access

Remedy:

Apply the patch for this vulnerability, available from the L-Forum Web site. See References.

References:

  • Full-Disclosure Mailing List, Tue Aug 13 2002 - 17:54:50 CDT: L-Forum XSS and upload spoofing.
  • L-Forum Web site: L-Forum.
  • SourceForge.net: [ 579278 ] Security holes.
  • BID-5462: Leszek Krupinski L-Forum Message Header Script Injection Vulnerability
  • CVE-2002-1458: Cross-site scripting vulnerability in L-Forum 2.40 and earlier, when the Enable HTML in messages option is on, allows remote attackers to insert arbitrary script or HTML via message fields including (1) From, (2) E-Mail, (3) Subject and (4) Body.
  • CVE-2002-1459: Cross-site scripting vulnerability in L-Forum 2.40 and earlier, when the Enable HTML in messages option is off, allows remote attackers to insert arbitrary script or HTML via message fields including (1) From, (2) E-Mail, and (3) Subject.
  • OSVDB ID: 9228: L-Forum HTML Message Multiple Field XSS

Platforms Affected:

  • L-Forum Project L-Forum 2.4.0

Reported:

Aug 14, 2002

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