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CVE-2015-5338

22
FAUCET Score

CVE-2015-5338 describes multiple Cross-Site Request Forgery (CSRF) vulnerabilities within the lesson module of Moodle versions through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3. These flaws allow remote attackers to hijack authenticated user sessions to make unauthorized requests to specific Moodle lesson module pages. With a CVSS score of 8.8 (High), this vulnerability has a network attack vector, low attack complexity, and could lead to high impacts on confidentiality, integrity, and availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the potential for severe impact warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.11CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
2.7.0CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.7.0:*:*:*:*:*:*:*
2.7.1CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.7.1:*:*:*:*:*:*:*
2.7.2CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.7.2:*:*:*:*:*:*:*
2.7.3CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.7.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.79%
Probability of exploitation in next 30 days
EPSS Percentile
52.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0079 is in the 54th percentile among its peer group of 14,855 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 2.7.11
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 2.8.9
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 2.9.3

Vendor Advisories (1)

composerGHSA-v33x-q8gh-4x42high

Moodle multiple cross-site request forgery (CSRF) vulnerabilities

May 13, 2022

References

git.moodle.org / gw
moodle.org / mod/forum/discuss.php
Vendor Advisory