CVE Feed

    Dashboard / CVE / CVE-2021-34648

    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.

    Published:Sep 22, 2021
    Last Modified:Mar 31, 2025
    EPS:Sep 22, 2021
    EPSS Score:0.00162
    CVSS Score:6.4

    Affected Products

    Vendor
    Ninjaforms
    Product
    Ninja Forms

    Exploits

    https://www.wordfence.com/blog/2021/09/recently-patched-vulnerabilities-in-ninja-forms-plugin-affects-over-1-million-site-owners/https://www.wordfence.com/blog/2021/09/recently-patched-vulnerabilities-in-ninja-forms-plugin-affects-over-1-million-site-owners/

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

    CVE-2026-80437 (CVSS 4.8) — The Ninja Forms WordPress plugin from 3.14.10 before 3.15.2 does not prevent shortcodes in request-derived val…
    CVE-2026-80438 (CVSS 5.9) — The Ninja Forms WordPress plugin before 3.15.2 does not restrict its REST abilities to administrators, accept…
    CVE-2026-15256 (CVSS 4.8) — The Ninja Forms WordPress plugin before 3.14.10 does not prevent user-supplied query-string input, used to pre…
    CVE-2026-65052 (CVSS 8.7) — Ninja Forms WordPress plugin version 3.14.8 and prior contains an improper input validation vulnerability that…
    CVE-2026-65051 (CVSS 6.9) — Ninja Forms WordPress plugin version 3.14.8 contains a client-side enforcement of server-side security vulnera…
    CVE-2026-65050 (CVSS 7.1) — Ninja Forms WordPress plugin version 3.14.8 and prior contains a missing authorization vulnerability in the re…
    CVE-2026-65049 (CVSS 8.4) — Ninja Forms plugin version 3.14.8 and prior for WordPress Multisite contains an incorrect authorization vulner…
    CVE-2026-65048 (CVSS 9.3) — Ninja Forms plugin for WordPress versions 3.10.4 through 3.14.9 contains an unauthenticated stored cross-site …
    CVE-2025-14072 (CVSS 5.3) — The Ninja Forms WordPress plugin before 3.13.3 allows unauthenticated attackers to generate valid access toke…
    CVE-2025-11924 (CVSS 7.5) — The Ninja Forms – The Contact Form Builder That Grows With You plugin for WordPress is vulnerable to Insecure …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High