UpHeron
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Servers and applications

CVE-2011-4278

Cross-site scripting (XSS) vulnerability in the tag autocomplete functionality in Moodle 1.9.x before 1.9.11 and 2.0.x before 2.0.2 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Severity
Medium 4.3
Published
16 Jul 2012
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.8% in the next 30 daysHigher than 79% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Cross-site scripting (CWE-79)
Attack
Over the network · No login needed
Attacker can
Change some data
CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N
Sources
NVD

Affected software

SoftwareAffected versions
MoodleServers and applications · cpe:a:moodle:moodle
  • Version 2.0.1
  • Version 2.0.0
  • Version 1.9.10
  • Version 1.9.9
All 12 release lines
  • Version 1.9.1
  • Version 1.9.2
  • Version 1.9.3
  • Version 1.9.4
  • Version 1.9.5
  • Version 1.9.6
  • Version 1.9.7
  • Version 1.9.8
  • Version 1.9.9
  • Version 1.9.10
  • Version 2.0.0
  • Version 2.0.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-4278
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-4278