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CVE-2021-42358

27
FAUCET Score

CVE-2021-42358 details a Cross-Site Request Forgery (CSRF) vulnerability in the Contact Form With Captcha WordPress plugin, affecting versions up to and including 1.6.2. This flaw, stemming from missing nonce validation during form submission, allows attackers to inject arbitrary web scripts. With a CVSS score of 8.8 (HIGH), the vulnerability is easily exploitable over the network with low complexity, potentially leading to high impacts on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.6.2CPE matchmatch criteria
cpe:2.3:a:contact_form_with_captcha_project:contact_form_with_captcha:*:*:*:*:*:wordpress:*:*

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
0.60%
Probability of exploitation in next 30 days
EPSS Percentile
45.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0060 is in the 47th 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/contact-form-with-captcha/trunk/cfwc-form.php
Third Party Advisory
wordfence.com / vulnerability-advisories
Third Party Advisory