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Medium severity · published Jul 1, 2026
CVE-2026-12135
FV Flowplayer Video Player <= 7.5.51.7212 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'video_player' Shortcode
6.4
CVSS
0.3%
EPSS
No
On KEV
Description
The FV Flowplayer Video Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'video_player' 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FF
FV Flowplayer Video Player · foliovision
through 7.5.51.7212 · source: vendor
Affected product
FF
FV Flowplayer Video Player
foliovision
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-12135
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-12135
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/tags/7.5.49.7212/controller/shortcodes.php#L227
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/tags/7.5.49.7212/controller/shortcodes.php#L293
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/controller/shortcodes.php#L227
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/controller/shortcodes.php#L293
plugins.trac.wordpress.org
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=
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/d5a3a560-08e6-43b7-b953-4e704eafc49b?source=cve
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