A vulnerability has been discovered in the infoRSS extension for Firefox, which can be exploited by malicious people to compromise a user's system.
Input passed via RSS feeds is not properly sanitised before being used to render content. This can be exploited to execute arbitrary script code within the "chrome:" context and execute arbitrary commands on a user's system.
Successful exploitation requires that a user subscribes to a specially crafted RSS feed.
The vulnerability is confirmed in version 18.104.22.168. Other versions may also be affected.
Solution: Update to version 1.2.0 or later.
Provided and/or discovered by: Reported by the vendor.
Original Advisory: https://addons.mozilla.org/en-US/firefox/addons/versions/361#version-1.2.0
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