Unauthorized Data Modification in Live CSS Preview Plugin for WordPress
CVE-2025-12354

4.3MEDIUM

Key Information:

Vendor

WordPress
Status
Live Css Preview
Vendor
CVE Published:
5 December 2025

What is CVE-2025-12354?

The Live CSS Preview plugin for WordPress has a security flaw that permits unauthorized data modification due to a missing capability check in the 'wp_ajax_frontend_save' AJAX endpoint. This vulnerability can be exploited by authenticated attackers with Subscriber-level access or higher, allowing them to alter the plugin's CSS settings without proper authorization. All versions up to and including 2.0.0 are affected, posing a risk to website integrity and user trust.

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Deploy the Patch

Affected Version(s)

Live CSS Preview * <= 2.0.0

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://wordpress.org/plugins/live-css-preview/

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Abhirup Konwar
JSON
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