CVE-2021-24166 json
Ninja Forms < 3.4.34 - CSRF to OAuth Service Disconnection
published 2021-04-05 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11080
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
The wp_ajax_nf_oauth_disconnect from the Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress WordPress plugin before 3.4.34 had no nonce protection making it possible for attackers to craft a request to disconnect a site's OAuth connection.
Patch / fix
- ninjaforms ninja_forms 3.4.34
Exploit prediction
0.46% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/b531fb65-a8ff-4150-a9a1-2a62a3c00bd6 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L |
| NVD | 2.0 | 5.8 | AV:N/AC:M/Au:N/C:N/I:P/A:P |
Affected products
- Unknown Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
- Technology feeds
References
-
wpscan.com
/vulnerability/b531fb65-a8ff-4150-a9a1-2a62a3c00bd6
exploit, third-party-advisory
-
wordfence.com
/blog/2021/02/one-million-sites-affected-four-severe-vulnerabilities-patched-in-ninja-forms/
third-party-advisory
Sources
- CVE List CVE-2021-24166
- NVD CVE-2021-24166
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.