mahara - several

Several vulnerabilities were discovered in Mahara, an electronic portfolio,
weblog, and resume builder:

• CVE-2011-2771
  Teemu Vesala discovered that missing input sanitising of RSS
  feeds could lead to cross-site scripting.
• CVE-2011-2772
  Richard Mansfield discovered that insufficient upload restrictions
  allowed denial of service.
• CVE-2011-2773
  Richard Mansfield discovered that the management of institutions was prone to
  cross-site request forgery.
• (no CVE ID available yet)

Andrew Nichols discovered a privilege escalation vulnerability
in MNet handling.

For the oldstable distribution (lenny), this problem has been fixed in
version 1.0.4-4+lenny11.

For the stable distribution (squeeze), this problem has been fixed in
version 1.2.6-2+squeeze3.

For the unstable distribution (sid), this problem has been fixed in
version 1.4.1-1.

We recommend that you upgrade your mahara packages.