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CVE-2021-39350

30
FAUCET Score

CVE-2021-39350 describes a Reflected Cross-Site Scripting (XSS) vulnerability in the FV Flowplayer Video Player WordPress plugin, affecting versions 7.5.0.727 through 7.5.2.727. This flaw allows attackers to inject arbitrary web scripts via the player_id parameter in the ~/view/stats.php file. Rated Medium severity (CVSS 6.1), it requires user interaction (UI:R) but can be exploited remotely (AV:N) with low attack complexity (AC:L), potentially leading to limited impact on confidentiality and integrity. There is no evidence of active exploitation, no Metasploit modules or ExploitDB entries, and minimal community discussion or media coverage, though a Nuclei template for an authenticated XSS related to this plugin exists.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.5.0.727, <= 7.5.2.727CPE matchmatch criteria
cpe:2.3:a:foliovision:fv_flowplayer_video_player:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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 Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.13%
Probability of exploitation in next 30 days
EPSS Percentile
80.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
Nuclei: CVE-2021-39350 · Jan 25, 2022
This CVE's current EPSS score of 0.0213 is in the 90th percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / changeset/2580834/fv-wordpress-flowplayer/trunk/view/stats.php
PatchThird Party Advisory
wordfence.com / vulnerability-advisories
Third Party Advisory