CVE-2011-4282

Moodle vulnerable to Cross-site Scripting

4.3 MediumFix available

Multiple cross-site scripting (XSS) vulnerabilities in the course-tags functionality in tag/coursetags_more.php in Moodle 2.0.x before 2.0.2 allow remote attackers to inject arbitrary web script or HTML via the (1) sort or (2) show parameter.

Exploit likelihood

1.83%Up 0.7 points since Feb 4, 2022

What each source reports

NVD Score used 4.3

Record: CVE-2011-4282
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

Record: CVE-2011-4282
Updated: 2026-11-02

EUVDEUVD-2011-4222 No score

Record: EUVD-2011-4222
Updated: 2026-11-03

GitHub AdvisoriesGHSA-6xqg-f34f-5fjx 1.3

Moodle vulnerable to Cross-site Scripting

Record: GHSA-6xqg-f34f-5fjx
CVSS 4.0: 1.3 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U
Weakness: CWE-79
Updated: 2026-11-02

OSVGHSA-6xqg-f34f-5fjx 1.3

Moodle vulnerable to Cross-site Scripting

Record: GHSA-6xqg-f34f-5fjx
CVSS 4.0: 1.3 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U
Weakness: CWE-79
Updated: 2026-11-02

Affected products

moodle

Affected packages

Affected packages
Package	Affected	Fixed
`moodle/moodle` Packagist	2.0.0 up to 2.0.2	2.0.2

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-2011-4282 is a medium vulnerability (CVSS 4.3) in Moodle, published July 16, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.83%, the 78th percentile. Fixed in moodle/moodle 2.0.2.