CVE-2021-39318 MEDIUM

CVE-2021-39318: H5P CSS Editor <= 1.0 Reflected Cross-Site Scripting

Vendor H5P Css Editor
Product H5P CSS Editor
Weakness CWE-79 · XSS
Published December 14, 2021
Last update February 13, 2025
View on NVD All CVEs

CVSS base score

6.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The H5P CSS Editor WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the h5p-css-file parameter found in the ~/h5p-css-editor.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.0.

Key dates

02Disclosure timeline

December 14, 2021 CVE published
February 13, 2025 Record updated