UpHeron
All vulnerabilities

Servers and applications

CVE-2011-4582

Open redirect vulnerability in the Calendar set page in Moodle 2.1.x before 2.1.3 allows remote authenticated users to redirect users to arbitrary web sites and conduct phishing attacks via a redirection URL.

Severity
Medium 4.9
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 68% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Improper input validation (CWE-20)
Attack
Over the network · Needs a login
Attacker can
Read some data · Change some data
CVSS vector
AV:N/AC:M/Au:S/C:P/I:P/A:N
Sources
NVD

Affected software

SoftwareAffected versions
MoodleServers and applications · cpe:a:moodle:moodle
  • Version 2.1.0
  • Version 2.1.1
  • Version 2.1.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-4582
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-4582