Stored Cross-Site Scripting in FV Flowplayer Video Player for WordPress
CVE-2026-12135

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Fv FloWPlayer Video Player
Vendor
CVE Published:
1 July 2026

What is CVE-2026-12135?

The FV Flowplayer Video Player plugin for WordPress allows authenticated users with contributor-level access to exploit a Stored Cross-Site Scripting (XSS) vulnerability. This occurs through manipulation of the 'align' attribute within the 'video_player' shortcode, coupled with inadequate input sanitization and output escaping for user-supplied attributes. Attackers can insert malicious scripts that, upon page access by other users, execute unintended actions, potentially compromising site security and user data.

Affected Version(s)

FV Flowplayer Video Player 0 <= 7.5.51.7212

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/fv-wordpress-f...
https://plugins.trac.wordpress.org/browser/fv-wordpress-f...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Muhammad Yudha - DJ
.