VULNERABILITY INTELLIGENCE

CVE-2021-43558

CVSS score6.1 MEDIUM

EPSS probability0.87%

CISA KEVNot currently listed

Published2021-11-22

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

A flaw was found in Moodle in versions 3.11 to 3.11.3, 3.10 to 3.10.7, 3.9 to 3.9.10 and earlier unsupported versions. A URL parameter in the filetype site administrator tool required extra sanitizing to prevent a reflected XSS risk.

Weakness classification

patrick@puiterwijk.org: CWE-79
nvd@nist.gov: CWE-79

Primary references

patrick@puiterwijk.org — Issue Tracking, Third Party Advisory
patrick@puiterwijk.org — Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory