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CVE-2021-34620

28
FAUCET Score

CVE-2021-34620 describes a critical Cross-Site Request Forgery (CSRF) vulnerability in the WP Fluent Forms plugin for WordPress, versions prior to 3.6.67. This flaw, stemming from a missing nonce check in administrative AJAX actions, allows an attacker to achieve stored Cross-Site Scripting (XSS) and limited Privilege Escalation. With a CVSS score of 8.8 (High), this vulnerability can lead to high impact on confidentiality, integrity, and availability, requiring user interaction but no authentication. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.6.67CPE matchmatch criteria
cpe:2.3:a:fluentforms:contact_form:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.63%
Probability of exploitation in next 30 days
EPSS Percentile
83.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0263 is in the 83rd percentile among its peer group of 14,855 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / browser/fluentform/trunk/app/Modules/Acl/Acl.php
ExploitVendor Advisory
wordfence.com / blog/2021/06/cross-site-request-forgery-patched-in-wp-fluent-forms
ExploitThird Party Advisory