Fast Velocity Minify <= 3.5.1 - Authenticated (Admin+) Stored Cross-Site Scripting
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The Fast Velocity Minify plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 3.5.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-12034
- 2026-10-03 Alias added: GHSA-8pqr-5qh3-4p2f
References
Other 3
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1c02e03a-7f96-4efa-9071-4a76fb21900d?source=cve
- https://github.com/peixotorms/fast-velocity-minify/commit/55a8b53a2ec6d358f8d7ad181170b9d8112e78ab
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3383015%40fast-velocity-minify&new=3383015%40fast-velocity-minify&sfp_email=&sfph_mail=
Sources
- CVE-2025-12034 · CVE Program
- CVE-2025-12034 · NVD
- FIRST EPSS
- GHSA-8pqr-5qh3-4p2f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences