Mandriva Linux Security Advisory 2009-222 - All form submissions (send message, change preferences, etc.) in SquirrelMail were previously subject to cross-site request forgery (CSRF), wherein data could be sent to them from an offsite location, which could allow an attacker to inject malicious content into user preferences or possibly send emails without user consent. This update provides a solution to this vulnerability.
775e8598d016b35e3b7442c1ecd1cc3cd586d146f8d103a5ec7900d9e522ca8e