Medium severity6.4NVD Advisory· Published Sep 22, 2021· Updated Jun 17, 2026

CVE-2021-34648

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Ninjaforms/Ninja Forms
cpe:2.3:a:ninjaforms:ninja_forms:*:*:*:*:*:wordpress:*:*
Range: <=3.5.7
WordPress/Ninja Formsllm-fuzzy
Range: <=3.5.7
Package: https://wordpress.org/plugins/ninja-forms
Saturday Drive/Ninja Forms Contact Formcpe-rescue
Range: 3.5.7

Patches

Vulnerability mechanics

References

plugins.trac.wordpress.org/browser/ninja-forms/trunk/includes/Routes/Submissions.phpnvdPatchThird Party Advisory
www.wordfence.com/blog/2021/09/recently-patched-vulnerabilities-in-ninja-forms-plugin-affects-over-1-million-site-owners/nvdExploitThird Party Advisory

News mentions

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