Stored Cross-Site Scripting Vulnerability in Fast Velocity Minify Plugin for WordPress
CVE-2025-12034

4.4MEDIUM

Key Information:

Vendor

WordPress
Status
Fast Velocity Minify
Vendor
CVE Published:
25 October 2025

What is CVE-2025-12034?

The Fast Velocity Minify plugin for WordPress contains a vulnerability that allows authenticated attackers with administrator-level permissions to perform Stored Cross-Site Scripting. This occurs due to inadequate input sanitization and output escaping in the admin settings, enabling the injection of arbitrary web scripts. When a user accesses a page where a script is injected, the malicious scripts are executed, posing significant risks, particularly within multi-site installations where unfiltered_html is disabled.

Affected Version(s)

Fast Velocity Minify * <= 3.5.1

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://github.com/peixotorms/fast-velocity-minify/commit...
https://plugins.trac.wordpress.org/changeset?sfp_email=&s...

CVSS V3.1

Score:
4.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Cody Sixteen
JSON
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CVE-2025-12034 : Stored Cross-Site Scripting Vulnerability in Fast Velocity Minify Plugin for WordPress