What is CVE-2022-50943?

CVE-2022-50943 is a medium-severity vulnerability in Moodle, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-05-10.

How severe is CVE-2022-50943?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Moodle

CVE-2022-50943

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 i…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (35.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Moodle
Moodle Lms — versions 4.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (Exploit, VDB Entry, exploit)
disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2022-50943?: CVE-2022-50943 is a medium-severity vulnerability in Moodle, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-05-10.
How severe is CVE-2022-50943?: Medium severity. CVSS v3 base score is 6.1 out of 10.