CVE-2026-121515
FV Flowplayer Video Player <= 7.5.56.7212 - Unauthenticated Stored Cross-Site Scripting via Comment Content
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.
INFO
Published Date :
Nov. 7, 2026, 2:29 a.m.
Last Modified :
Nov. 7, 2026, 2:29 a.m.
Remotely Exploit :
Yes !
Source :
Wordfence
Affected Products
The following products are affected by CVE-2026-121515
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | MITRE-CVE |
Solution
- Update FV Flowplayer Video Player plugin to latest version.
- Ensure 'Parse Vimeo and YouTube links' option is disabled.
- Review and sanitize existing user-submitted comments.
- Enable comment moderation.
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CVE-2026-121515 vulnerability anywhere in the article.