A vulnerability has been discovered in Mahara, which can be exploited by malicious users to conduct script insertion attacks.
Input passed as uploaded HTML files to the "File" form field in My Portfolio -> Files -> Upload File is not properly sanitised before being stored. This can be exploited to insert arbitrary HTML and script code, which is executed in a user's browser session in context of an affected site when the malicious HTML file is viewed.
Successful exploitation requires that both the victim and the attacker have valid user credentials.
The vulnerability is confirmed in version 0.9.0. Prior versions may also be affected.
Solution: Update to version 0.9.1.
Provided and/or discovered by: Reported by the vendor.
Original Advisory: https://eduforge.org/frs/shownotes.php?release_id=342
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Subject: Mahara HTML File Upload Script Insertion Vulnerability
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