Ninja Forms - File Uploads Extension <= 3.3.12 - Reflected Cross-Site Scripting
The Ninja Forms - File Uploads Extension WordPress plugin is vulnerable to reflected cross-site scripting due to missing sanitization of the files filename parameter found in the ~/includes/ajax/controllers/uploads.php file which can be used by unauthenticated attackers to add malicious web scripts to vulnerable WordPress sites, in versions up to and including 3.3.12.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | Ninja Forms - File Uploads | <= 3.3.12 | 3.3.13 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- WordPress
- Package
Ninja Forms - File Uploads- Disclosed
- 20.11.2021
- Updated
- 11.10.2026 10:22
Sources and licenses
Wordfence Intelligence - 8c5642fa-d001-47c4-8acd-94ae944e5129 - Wordfence Intelligence
Copyright 1999-2026 The MITRE Corporation
Copyright 2012-2026 Defiant Inc.
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Vulnerability history: Ninja Forms - File Uploads
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 10
- First → latest
- 04.2019 10.2026
- Without a fix
- 2
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- High 6
- Medium 2
Disclosures per year
- 2019: 1
- 2020: 1
- 2021: 1
- 2022: 0
- 2023: 0
- 2024: 1
- 2025: 0
- 2026: 6
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Ninja Forms - File Uploads Extension <= 3.3.12 - Reflected Cross-Site Scripting this entry
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