Quick answers
- Is CVE-2026-12135 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-12135 being exploited in the wild.
- How severe is CVE-2026-12135?
- Medium severity, with a CVSS score of 6.4, published 1 July 2026.
- Which products and versions are affected?
- FolioVision FV Flowplayer Video Player up to, and including, 7.5.51.7212.
- Is there a fix for CVE-2026-12135?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-12135 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-12135?
- Check whether you run FolioVision FV Flowplayer Video Player at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The FV Flowplayer Video Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) due to insufficient input sanitization and output escaping on the 'align' attribute within the 'video_player' shortcode. An authenticated attacker with at least contributor-level permissions can exploit this by injecting arbitrary web scripts into a post or page. These scripts will execute in the context of any user's browser who views the affected page. The vulnerability exists in all versions up to and including 7.5.51.7212. A patch has been released in subsequent versions to address the improper neutralization of user-supplied input.
Affected products
- Foliovision FV Flowplayer Video Player up to, and including, 7.5.51.7212
Timeline
- 2026-07-01: disclosed
- 2026-07-01: advisory
References
- https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/tags/7.5.49.7212/controller/shortcodes.php
- https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/tags/7.5.49.7212/controller/shortcodes.php
- https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/controller/shortcodes.php
- https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/controller/shortcodes.php
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3586305%40fv-wordpress-flowplayer%2Ftrunk&old=3557974%40fv-wordpress-flowplayer%2Ftrunk&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d5a3a560-08e6-43b7-b953-4e704eafc49b?source=cve