VULNERABILITY INTELLIGENCE
CVE-2026-91827
CVSS score7.5 HIGH
EPSS probability0.35%
CISA KEVNot currently listed
Published2026-09-22
Last modified2026-09-22
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
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.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-502