VULNERABILITY INTELLIGENCE

CVE-2023-23921

CVSS score6.1 MEDIUM
EPSS probability0.81%
CISA KEVNot currently listed
Published2023-02-17
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

The vulnerability was found Moodle which exists due to insufficient sanitization of user-supplied data in some returnurl parameters. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website. This flaw allows a remote attacker to perform cross-site scripting (XSS) attacks.

Weakness classification

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

Primary references