UpHeron
All vulnerabilities

Servers and applications

CVE-2011-4590

The web services implementation in Moodle 2.0.x before 2.0.6 and 2.1.x before 2.1.3 does not properly consider the maintenance-mode state and account attributes during login attempts, which allows remote authenticated users to bypass intended access restrictions by connecting to a webservice server.

Severity
Medium 4.0
Published
20 Jul 2012
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.2% in the next 30 daysHigher than 67% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Improper authentication (CWE-287)
Attack
Over the network · Needs a login
Attacker can
Change some data
CVSS vector
AV:N/AC:L/Au:S/C:N/I:P/A:N
Sources
NVD

Affected software

SoftwareAffected versions
MoodleServers and applications · cpe:a:moodle:moodle
  • Version 2.1.2
  • Version 2.1.1
  • Version 2.1.0
  • Version 2.0.5
All 9 release lines
  • Version 2.0.0
  • Version 2.0.1
  • Version 2.0.2
  • Version 2.0.3
  • Version 2.0.4
  • Version 2.0.5
  • Version 2.1.0
  • Version 2.1.1
  • Version 2.1.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-4590
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-4590