XSS in Moodle

CVE-2024-34000

ID numbers displayed in the lesson overview report required additional sanitizing to prevent a stored XSS risk.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (39.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Moodle

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

jev770/badmoodle-scan

References

patrick@puiterwijk.org (Vendor Advisory)

Frequently asked questions

What is CVE-2024-34000?: CVE-2024-34000 is a medium-severity vulnerability in Moodle, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2024-05-31.
How severe is CVE-2024-34000?: Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2024-34000 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.