CVE-2025-12034: Fast Velocity Minify (WordPress plugin) · Cross-site Scripting
Affects Fast Velocity Minify (WordPress plugin)Source CVE Database V5
Not known to be exploited · CVSS 4.4 Medium.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 25 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| alignak Fast Velocity Minify | Affected
| Fixed in– |
AI-suggested
Until an official fix is available, restrict administrator access to trusted users only and consider disabling or limiting the use of the Fast Velocity Minify plugin in multi-site or restricted HTML environments. Monitor vendor channels for updates and apply patches promptly once released.
Description
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.
References
- wordfence.com/threat-intel/vulnerabilities/id/1c02e03a-7f96-4efa-9071-4a76fb21900d?source=cve (opens in a new tab)
- github.com/peixotorms/fast-velocity-minify/commit/55a8b53a2ec6d358f8d7ad181170b9d8112e78ab (opens in a new tab)
- plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3383015%40fast-velocity-minify&new=3383015%40fast-velocity-minify&sfp_email=&sfph_mail= (opens in a new tab)