CVE-2026-7556: FV Flowplayer Video Player <= 7.5.49.7212 - Unauthenticated Stored Cross-Site Scripting via Comment Text
The FV Flowplayer Video Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the comment text in all versions up to, and including, 7.5.49.7212 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. Exploitation requires an administrator to have enabled the non-default 'Parse Vimeo and YouTube links' (parsecomments) plugin setting, and requires a submitted comment to be approved by an administrator before the payload is publicly delivered.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
Disable the non-default 'Parse Vimeo and YouTube links' (parse_comments) plugin setting in the FV Flowplayer Video Player plugin to prevent parsing of comment text.
FV Flowplayer Video Player (WordPress plugin) parse_comments = false - Operational
Do not approve untrusted or suspicious comments. Review existing approved comments and remove or sanitize any that contain injected scripts or unexpected markup before re-approving.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-7556?
CVE-2026-7556 has a severity score of 7.2, categorized as high.
How do I fix CVE-2026-7556?
To fix CVE-2026-7556, update the FV Flowplayer Video Player plugin to the latest version beyond 7.5.49.7212.
What kind of attack does CVE-2026-7556 enable?
CVE-2026-7556 enables unauthenticated stored cross-site scripting (XSS) attacks via comment text.
What versions of FV Flowplayer Video Player are affected by CVE-2026-7556?
All versions of FV Flowplayer Video Player up to and including 7.5.49.7212 are affected by CVE-2026-7556.
Is authentication required to exploit CVE-2026-7556?
No, CVE-2026-7556 can be exploited by unauthenticated attackers.