CVE-2026-121515

medium

Description

The FV Flowplayer Video Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 7.5.56.7212 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the 'Parse Vimeo and YouTube links' option to be enabled, and the injected comment must be approved before the script executes for site visitors.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/ca0191be-df68-4b5f-85e6-40e962cc5de8?source=cve

https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/controller/frontend.php#L707

https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/controller/frontend.php#L692

https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/controller/frontend.php#L657

https://github.com/foliovision/fv-wordpress-flowplayer/commit/9f224f71eb16ad01330df46c30b89e8e582cf8c8

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-118567

Details

Source: Mitre, NVD

Published: 2026-11-07

Updated: 2026-11-07

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 5.4

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.00217