CVE-2023-4520

MEDIUM EPSS 37.3%
Published Aug 25, 20232y ago · Modified Jun 17, 20262w ago
6.1 CVSS 3.1
Medium
Find Similar
Published Aug 25, 2023 2y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
6.1
Exploitability
2.8
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
37.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
foliovisionfv_flowplayer_video_player* ≤7.5.37.7212

References 3

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/tags/7.5.36.7212/models/custom-videos.php#L341
    Product
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/2957322/fv-wordpress-flowplayer#file2
    Patch
  • wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/c55ca7d4-6bc0-49c9-8ce0-50fff8775a76?source=cve
    Third Party Advisory

Remediation