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CVE-2011-4282

17
FAUCET Score

CVE-2011-4282 describes multiple cross-site scripting (XSS) vulnerabilities in Moodle 2.0.x before version 2.0.2, specifically within the course-tags functionality. Attackers can inject arbitrary web script or HTML via the 'sort' or 'show' parameters in tag/coursetags_more.php. This vulnerability has a CVSS score of 4.3, indicating a medium severity with low impact on integrity (partial) and no impact on confidentiality or availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.0.0CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.0.0:*:*:*:*:*:*:*
2.0.1CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.0.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.83%
Probability of exploitation in next 30 days
EPSS Percentile
76.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0183 is in the 57th percentile among its peer group of 19,953 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 2.0.2

Vendor Advisories (1)

composerGHSA-6xqg-f34f-5fjxlow

Moodle vulnerable to Cross-site Scripting

May 13, 2022

References

git.moodle.org / gw
moodle.org / mod/forum/discuss.php
Vendor Advisory
openwall.com / lists/oss-security/2011/11/14/1