UpHeron
All vulnerabilities

Servers and applications

CVE-2012-3391

mod/forum/rsslib.php in Moodle 2.1.x before 2.1.7 and 2.2.x before 2.2.4 does not properly implement the requirement for posting before reading a Q&A forum, which allows remote authenticated users to bypass intended access restrictions by leveraging the student role and reading the RSS feed for a forum.

Severity
Medium 4.0
Published
23 Jul 2012
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.1% in the next 30 daysHigher than 66% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-264
Attack
Over the network · Needs a login
Attacker can
Read some data
CVSS vector
AV:N/AC:L/Au:S/C:P/I:N/A:N
Sources
NVD

Affected software

SoftwareAffected versions
MoodleServers and applications · cpe:a:moodle:moodle
  • Version 2.2.3
  • Version 2.2.2
  • Version 2.2.1
  • Version 2.2.0
All 11 release lines
  • Version 2.1.0
  • Version 2.1.1
  • Version 2.1.2
  • Version 2.1.3
  • Version 2.1.4
  • Version 2.1.5
  • Version 2.1.6
  • Version 2.2.0
  • Version 2.2.1
  • Version 2.2.2
  • Version 2.2.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2012-3391
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2012-3391