Input validation error in Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress - CVE-2021-34648
Published: September 24, 2021
Vulnerability identifier: #VU56846
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-34648
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: The WP Ninjas
Affected software:
Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress
Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to insufficient validation of user-supplied input in the "trigger_email_action" function in the ~/includes/Routes/Submissions.php file. A remote authenticated attacker can use a specially crafted email to socially engineer victims.
How to mitigate CVE-2021-34648
Install updates from vendor's website.