H5P CSS Editor <= 1.0 - Reflected Cross-Site Scripting

6.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2021-39318
CVSS 6.1 (Medium)
Publicly Published December 13, 2021
Last Updated January 22, 2024
Researcher p7e4

Description

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.

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Vulnerability Details for H5P CSS Editor

Software Type Plugin
Software Slug h5p-css-editor (view on wordpress.org)
Patched? No
Remediation No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
Affected Version
  • <= 1.0

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