High8.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H

PT-2024-54: Reflected Cross-Site Scripting (Reflected XSS) in Moodle

Error type:

  • CWE-79:Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Vulnerability vector:

  • Base vulnerability score (CVSSv3.1): CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
  • Severity (CVSSv3.1): 8.4 (high)
  • Base vulnerability score (CVSSv4.0): CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H
  • Severity (CVSSv4.0): 8.3 (high)

Description:

The vulnerability was identified in Moodle versions 4.5; 4.4 - 4.4.4; 4.3 - 4.3.8.
The discovered vulnerability, which exists due to a lack of filtering during course editing, can be exploited by an attacker to embed an arbitrary JavaScript code into the body of a page.

Vulnerability status: Confirmed by vendor

Date of vulnerability remediation: 09.12.2024

Recommendations:

  • Update to versions 4.3.9, 4.4.5, 4.5.1 or higher

Additional information:

Researcher: Andrey Alekseev (Positive Technologies)

Identifiers:

CVE-2024-55647

BDU:2024-11269

Vendor:

Moodle

Vulnerable product:

Moodle

Vulnerable versions:

4.5; 4.4 - 4.4.4; 4.3 - 4.3.8