CVE-2026-91827
Ninja Forms 3.15.3 - Unauthenticated PHP Object Injection via CSV Export
- State
- Published
- Severity
- 7.5 High
- Published
- Sep 22, 2026
- Updated
- Sep 22, 2026
- Reserved
- Sep 15, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H | WPScan |
Weaknesses
- CWE-502 Deserialization of Untrusted Data
Affected Products
| Product | Versions |
|---|---|
Ninja FormsUnknown |
|
References
- https://wpscan.com/vulnerability/7b279db2-92e0-4122-b5c6-aa12b7b01858/exploitvdb-entrytechnical-description
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