CVE-2026-12135: FV Flowplayer Video Player <= 7.5.51.7212 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'video_player' Shortcode
The FV Flowplayer Video Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'videoplayer' shortcode 'align' attribute in all versions up to, and including, 7.5.51.7212 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-12135?
The severity of CVE-2026-12135 is classified as medium with a score of 6.4.
How do I fix CVE-2026-12135?
To fix CVE-2026-12135, update the FV Flowplayer Video Player plugin to version 7.5.51.7213 or later.
What type of vulnerability is CVE-2026-12135?
CVE-2026-12135 is a Stored Cross-Site Scripting (XSS) vulnerability.
What is affected by CVE-2026-12135?
CVE-2026-12135 affects all versions of the FV Flowplayer Video Player plugin up to and including 7.5.51.7212.
What is the attack vector for CVE-2026-12135?
The attack vector for CVE-2026-12135 is authenticated users who can exploit the 'video_player' shortcode 'align' attribute.