CVE-2023-4520

Description

The FV Flowplayer Video Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘_fv_player_user_video’ parameter saved via the 'save' function hooked via init, and the plugin is also vulnerable to Arbitrary Usermeta Update via the 'save' function in versions up to, and including, 7.5.37.7212 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, and makes it possible to update the user metas arbitrarily, but the meta value can only be a string.

5.4

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.48%

Third-Party Advisory wordfence.com

Affected: foliovision FV Flowplayer Video Player

References

Link	Tags
https://www.wordfence.com/threat-intel/vulnerabilities/id/c55ca7d4-6bc0-49c9-8ce0-50fff8775a76?source=cve	third party advisory
https://plugins.trac.wordpress.org/changeset/2957322/fv-wordpress-flowplayer#file2	patch
https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/tags/7.5.36.7212/models/custom-videos.php#L341	product

Frequently Asked Questions

What is the severity of CVE-2023-4520?: CVE-2023-4520 has been scored as a medium severity vulnerability.
How to fix CVE-2023-4520?: To fix CVE-2023-4520, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-4520 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-4520 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-4520?: CVE-2023-4520 affects foliovision FV Flowplayer Video Player.

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