Medium 6.1Published May 10, 2026

CVE-2022-50943Moodle LMS 4.0 Cross-Site Scripting via course search.php

Updated under an hour ago (Oct 27, 2026, 9:00 AM ET)

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It affects Moodle LMS and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Moodle LMS

Exploited in the last 30 days

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: 6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Moodle Moodle LMS moodle:lms (from the name)	4.0	CNA record
moodle moodle moodle:moodle	through 4.0.0	NVD

References

References

https://www.exploit-db.com/exploits/51115	exploit, vdb-entry
https://moodle.org/	product
https://git.in.moodle.com/moodle	product
https://www.vulncheck.com/advisories/moodle-lms-cross-site-scripting-via-course-search-php	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.