CVE-2011-4297

Moodle does not properly restrict comment capabilities

6.4 MediumFix available

comment/lib.php in Moodle 2.0.x before 2.0.4 and 2.1.x before 2.1.1 does not properly restrict comment capabilities, which allows remote attackers to post a comment by leveraging the guest role and operating on a front-page activity.

Exploit likelihood

1.56%Up 0.4 points since Feb 4, 2022

What each source reports

NVD Score used 6.4

Record: CVE-2011-4297
CVSS 2.0: 6.4 MediumAV:N/AC:L/Au:N/C:N/I:P/A:P
Weakness: CWE-264
Updated: 2026-11-02

CVE List No score

Record: CVE-2011-4297
Updated: 2026-11-02

EUVDEUVD-2011-4234 No score

Record: EUVD-2011-4234
Updated: 2026-11-03

GitHub AdvisoriesGHSA-62wv-866c-rh86 6.6

Moodle does not properly restrict comment capabilities

Record: GHSA-62wv-866c-rh86
CVSS 4.0: 6.6 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U
Weakness: CWE-863
Updated: 2026-11-02

OSVGHSA-62wv-866c-rh86 6.6

Moodle does not properly restrict comment capabilities

Record: GHSA-62wv-866c-rh86
CVSS 4.0: 6.6 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U
Weakness: CWE-863
Updated: 2026-11-02

Affected products

moodle

Affected packages

Affected packages
Package	Affected	Fixed
`moodle/moodle` Packagist	2.0.0 up to 2.0.4	2.0.4
`moodle/moodle` Packagist	2.1.0 up to 2.1.1	2.1.1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-4297 is a medium vulnerability (CVSS 6.4) in Moodle, published July 16, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.56%, the 75th percentile. Fixed in moodle/moodle 2.0.4.