Description

WordPress Plugin FV Flowplayer Video Player is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin FV Flowplayer Video Player version 7.5.2.727 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 7.5.3.727 or latest

References

https://sploitus.com/exploit?id=WPEX-ID:E9ADC166-BE7F-4066-A2C1-7926C6304FC9

https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39350

https://plugins.svn.wordpress.org/fv-wordpress-flowplayer/trunk/readme.txt

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Severity

High

Classification

CVE-2021-39350 CWE-79 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Tags

Missing Update XSS