CVE-2011-4280

Moodle vulnerable to XSS via bundled spikephpcoverage library

4.3 MediumPublic exploitFix available

Cross-site scripting (XSS) vulnerability in the Spike PHPCoverage (aka spikephpcoverage) library, as used in Moodle 2.0.x before 2.0.2 and other products, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Exploit likelihood

3.62%Up 1.7 points since Feb 4, 2022

What each source reports

NVD Score used 4.3

Record: CVE-2011-4280
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-2011-4280
Updated: 2026-11-02

EUVDEUVD-2022-4646 No score

Record: EUVD-2022-4646
Updated: 2026-11-03

GitHub AdvisoriesGHSA-mx5g-3vxh-rgm8 No score

Moodle vulnerable to XSS via bundled spikephpcoverage library

Record: GHSA-mx5g-3vxh-rgm8
Weakness: CWE-79
Updated: 2026-11-02

OSVGHSA-mx5g-3vxh-rgm8 No score

Moodle vulnerable to XSS via bundled spikephpcoverage library

Record: GHSA-mx5g-3vxh-rgm8
Weakness: CWE-79
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`moodle/moodle` Packagist	2.0 up to 2.0.2	2.0.2

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Moodle 2.0.1 - 'PHPCOVERAGE_HOME' Cross-Site Scripting	2011-02-01

History

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

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

In short

CVE-2011-4280 is a medium vulnerability (CVSS 4.3) in Moodle, published July 16, 2012. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 3.62%, the 89th percentile. Fixed in moodle/moodle 2.0.2.