CVE-2021-39350 FV Flowplayer Video Player <= 7.5.0.727 - 7.5.2.727 Reflected Cross-Site Scripting

What is CVE-2021-39350?

CVE-2021-39350 is a medium-severity cross-site scripting vulnerability in FV Flowplayer Video Player, published on 6 Oct 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The FV Flowplayer Video Player WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the player_id parameter found in the ~/view/stats.php file which allows attackers to inject arbitrary web scripts, in versions 7.5.0.727 - 7.5.2.727.

Weakness: CWE-79

Which versions are affected by CVE-2021-39350?

It affects 1 product.

Products include Foliovision Fv Flowplayer Video Player.

How do I fix CVE-2021-39350?

No fix has been published for CVE-2021-39350 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-39350 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-39350 exists.

Public exploit code: 1 Nuclei template.

Other vulnerabilities in FV Flowplayer Video Player

• CVE-2019-14801 SQL injection in n/a Critical 9.8
• CVE-2019-13573 SQL injection in n/a Critical 9.8
• CVE-2024-6338 FV Player <= 7.5.46.7212 - Authenticated (Subscriber+) SQL Injection via exclude Parameter High 8.8
• CVE-2023-30499 WordPress FV Flowplayer Video Player Plugin <= 7.5.32.7212 is vulnerable to Cross Site Scripting (XSS) High 7.1
• CVE-2022-25607 WordPress FV Flowplayer Video Player plugin <= 7.5.15.727 - SQL Injection (SQLi) vulnerability Medium 6.6

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-jfxr-v6vh-5957.