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CVE WatchSep 22, 2026

CVE-2026-91827

The Ninja Forms WordPress plugin 3.15.3 does not prevent user-submitted form field values from being deserialised when an administrator late

CVSS

7.5

High

EPSS

—

KEV

—

Exploit Today

—

0-100

Published: Sep 22, 2026 · Last modified: Sep 22, 2026

EPSS · 30d

Not enough EPSS history yet.

Technical description

The Ninja Forms WordPress plugin 3.15.3 does not prevent user-submitted form field values from being deserialised when an administrator later exports form submissions to CSV, allowing unauthenticated attackers to perform PHP Object Injection; if a suitable POP chain is present via another installed plugin or theme, this can lead to actions such as arbitrary file operations or remote code execution.

Official references
Related CVEs

No related CVEs by CWE or product.