CVE-2026-109984 json
FV Flowplayer Video Player <= 7.5.55.7212 - Unauthenticated Stored Cross-Site Scripting via 'ad' Shortcode Attribute in Comments
published 10d ago modified 10d ago also EUVD-2026-114232
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 34%
- public exploits
- 0
- none known
Summary
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, 7.5.55.7212 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 a site administrator to approve the comment containing the malicious shortcode; execution is then triggered for any visitor who interacts with the video player on that page.
Patch / fix
Is CVE-2026-109984 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 10d ago
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N |
Affected products
- foliovision FV Flowplayer Video Player
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- github.com /foliovision/fv-wordpress-flowplayer/commit/62aaa66a560923a4ba75f5d0a557744599345d35
- wordfence.com /threat-intel/vulnerabilities/id/c7ce7b9d-7284-4a31-b60d-aa66b7871685?source=cve
- plugins.trac.wordpress.org /browser/fv-wordpress-flowplayer/trunk/flowplayer/modules/ad-popup.module.js#L39
- plugins.trac.wordpress.org /browser/fv-wordpress-flowplayer/trunk/models/flowplayer-frontend.php#L844
- plugins.trac.wordpress.org /browser/fv-wordpress-flowplayer/trunk/models/flowplayer-frontend.php#L829
- plugins.trac.wordpress.org /browser/fv-wordpress-flowplayer/trunk/models/flowplayer-frontend.php#L684
- plugins.trac.wordpress.org /browser/fv-wordpress-flowplayer/trunk/controller/frontend.php#L664
Sources
- CVE List CVE-2026-109984
- NVD CVE-2026-109984
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