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CVE-2022-50943

Moodle LMS 4.0 Cross-Site Scripting via course search.php

Published: May 10, 2026Updated: May 27, 2026 Sources: CVE List NVDCWE-79
NVD MITRE
6.1CVSSMEDIUM
EPSS Score
0.3%
Top 79.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

Moodle LMS 4.0 contains a cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting payloads through the search parameter. Attackers can inject JavaScript code via the search field in course/search.php to execute arbitrary scripts in users' browsers and steal session cookies.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-79

Affected Products

moodlemoodle
On-premWeb App
Web & CMS Plugins / cms-core
Moodle LMSMoodle
On-prem
Web & CMS Plugins / cms-core
moodleoss-projectAUWeb & CMS Pluginsaka jmol plugin, lms

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://git.in.moodle.com/moodle
git.in.moodle.com
https://moodle.org/
moodle.org
https://www.exploit-db.com/exploits/51115
exploit-db.com
and 1 more references View all →

Timeline

Published
May 10, 2026
Last Updated
May 27, 2026

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