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CVE-2011-4306

18
FAUCET Score

CVE-2011-4306 describes a Cross-site Scripting (XSS) vulnerability in Moodle 1.9.x versions prior to 1.9.14, specifically within the course/editsection.html component. This flaw allows authenticated attackers to inject malicious web scripts or HTML through crafted data. With a CVSS score of 4.3, this vulnerability is of medium severity, requiring network access and medium attack complexity, with potential impact limited to integrity. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.9.1CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:1.9.1:*:*:*:*:*:*:*
1.9.2CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:1.9.2:*:*:*:*:*:*:*
1.9.3CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:1.9.3:*:*:*:*:*:*:*
1.9.4CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:1.9.4:*:*:*:*:*:*:*
1.9.5CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:1.9.5:*:*:*:*:*:*:*

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
76.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0183 is in the 57th percentile among its peer group of 19,955 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: 1.9.14

Vendor Advisories (1)

composerGHSA-r729-mx2r-j26jmedium

Moodle XSS Vulnerability

May 13, 2022

References

git.moodle.org / gw
moodle.org / mod/forum/discuss.php
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi