XSS in Fluentforms Contact Form
CVE-2021-34620
The WP Fluent Forms plugin < 3.6.67 for WordPress is vulnerable to Cross-Site Request Forgery leading to stored Cross-Site Scripting and limited Privilege Escalation due to a missing nonce check in the access control function for administrative AJAX actions
Vulnerability class: XSS (Cross-Site Scripting)
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: 0.026 (85.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
- Fluentforms Contact Form
- Wp Manage Ninja Fluent Forms — versions 3.6.67
Weakness classification (CWE)
Public proof-of-concept exploits
References
- plugins.trac.wordpress.org/browser/fluentform/trunk/app/Modules/Acl/Acl.php (Exploit, Vendor Advisory)
- www.wordfence.com/blog/2021/06/cross-site-request-forgery-patched-in-wp-fluent-… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-34620?
- CVE-2021-34620 is a high-severity vulnerability in Fluentforms Contact Form, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2021-07-07.
- How severe is CVE-2021-34620?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-34620 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.