Ivan Markovic has discovered a vulnerability in SquirrelMail, which can be exploited by malicious people to conduct script insertion attacks.
Input passed as HTML parts of e-mail messages is not properly sanitised for malformed HTML before being viewed. This can be exploited to inject arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site when a malicious e-mail message is opened.
Successful exploitation requires that "Show HTML Version by Default" is enabled in "Options -> Display Preferences".
The vulnerability is confirmed in version 1.4.16 and reported in version 1.4.15. Prior versions may also be affected.
Do you have additional information related to this advisory?
Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this
information to email@example.com
Subject: SquirrelMail Malformed HTML Mail Message Script Insertion
No posts yet
You must be logged in to post a comment.
Secunia Customer Login
Not a customer already?
Learn more about how our market leading Vulnerability Management solutions can help you manage risk and ensure compliance.