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CVE-2011-4281

22
FAUCET Score

CVE-2011-4281 describes multiple Cross-Site Request Forgery (CSRF) vulnerabilities affecting Moodle 2.0.x versions prior to 2.0.2. These flaws allow remote attackers to hijack authenticated user sessions to mark activities or courses as complete. With a CVSS score of 6.8, this vulnerability is of medium severity. It can be exploited remotely with medium attack complexity, potentially leading to partial compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, indicating low public attention.

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

6.8MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.01%
Probability of exploitation in next 30 days
EPSS Percentile
59.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0101 is in the 18th 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-m97f-x4mr-4x3qmedium

Moodle vulnerable to Cross-Site Request Forgery

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