Auth bypass in Ninjaforms Ninja Forms
CVE-2021-34648
The Ninja Forms WordPress plugin is vulnerable to arbitrary email sending via the trigger_email_action function found in the ~/includes/Routes/Submissions.php file, in versions up to and including 3.5.7. This allows authenticated attackers to send arbitrary emails from the affected server via the /ninja-forms-submissions/email-action REST API which can be used to socially engineer victims.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.007 (50.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Ninjaforms Ninja Forms
- Saturday Drive Ninja Forms — versions 3.5.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/blog/2021/09/recently-patched-vulnerabilities-in-ninja-forms-… (Exploit, Third Party Advisory)
- plugins.trac.wordpress.org/browser/ninja-forms/trunk/includes/Routes/Submission… (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-34648?
- CVE-2021-34648 is a medium-severity vulnerability in Ninjaforms Ninja Forms, classified under Incorrect Authorization. CVSS score: 6.4/10. Published 2021-09-22.
- How severe is CVE-2021-34648?
- Medium severity. CVSS v3 base score is 6.4 out of 10.
- Is CVE-2021-34648 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.