CVE-2026-95807: FV Player 8 stored cross-site scripting (XSS) vulnerability
medium 6.4 published 2026-10-14 · updated 2026-10-15
- Affected versions
- 8.1.7 and older
- Fixed in
- unknown
- Latest version
- 8.1.9
- Severity
- Medium · CVSS 6.4
- Active installs
- 1,000+
- Type
- Stored cross-site scripting (XSS)
What an attacker needs
- Access: None. No account or login is needed.
CVSS vector (score by Wordfence): CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
What to do now
- Update FV Player 8 to the latest version (8.1.9). The record does not name a fixed version, so also read the advisory below.
- If you cannot update right away, deactivate it until you can.
- Not sure which version you run? Check your version against every known FV Player 8 issue.
With WP-CLI:
wp plugin get fv-player --field=version. - If you ran an affected version and something looks off (new admin users, spam pages, redirects), run the free scan below.
The advisory
The FV Player 8 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'synopsis' Shortcode Attribute in all versions up to, and including, 8.1.7 due to insufficient input sanitization and output escaping. 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. Unauthenticated visitors can also exploit this vulnerability when the 'Parse Vimeo and YouTube links' (parse_comments) setting is enabled, as this causes the plugin to process shortcodes within comment text.
References
- NVD CVE-2026-95807 nvd.nist.gov
- Wordfence advisory www.wordfence.com
- github.com github.com
- Plugin source plugins.trac.wordpress.org
Related
Ran an affected version? Check your site for signs of a hack
The free scan reads the public side of your site and looks for spam pages, hidden redirects, injected scripts and blacklist entries. No login, no install, about a minute.
Where this data comes from
- CVE record, score and references: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
- Versions and install counts: wordpress.org/plugins/fv-player (Plugins API), fetched 2026-11-04.
- The summary, “what an attacker needs” and “what to do” sections are our plain-English reading of the record and the plugin's release history; the quoted description is the record's own text. Spot an error? Email Daniel.