CSRF in Contact Form With Captcha
CVE-2021-42358
The Contact Form With Captcha WordPress plugin is vulnerable to Cross-Site Request Forgery due to missing nonce validation in the ~/cfwc-form.php file during contact form submission, which made it possible for attackers to inject arbitrary web scripts in versions up to, and including 1.6.2.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000
Affected products
- Contact Form With Captcha — versions 1.6.2
- Contact Form With Captcha Project
Weakness classification (CWE)
Public proof-of-concept exploits
References
- plugins.trac.wordpress.org/browser/contact-form-with-captcha/trunk/cfwc-form.php (Third Party Advisory)
- wordfence.com/vulnerability-advisories/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-42358?
- CVE-2021-42358 is a high-severity vulnerability in Contact Form With Captcha, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-11-29.
- How severe is CVE-2021-42358?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-42358 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.