Vulnerability details
CVE-2025-4392
anssilaitila Shared Files – Frontend File Upload Form & Secure File Sharing
Shared Files <= 1.7.48 - Unauthenticated Stored Cross-Site Scripting via sanitize_file Function
CVSS 3.1
7.2High
Official description
The Shared Files – Frontend File Upload Form & Secure File Sharing plugin for WordPress is vulnerable to Stored Cross-Site Scripting via html File uploads in all versions up to, and including, 1.7.48 due to insufficient input sanitization and output escaping within the sanitize_file() function. This makes it possible for unauthenticated attackers to bypass the plugin’s MIME-only checks and inject arbitrary web scripts in pages that will execute whenever a user accesses the html file.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.2High | 3.1 | CVEProject cvelistV5 (CNA) (Wordfence) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| anssilaitila | Shared Files – Frontend File Upload Form & Secure File Sharing | v ≤ 1.7.48 | CVEProject cvelistV5 (CNA) |
References and advisories
4- https://www.wordfence.com/threat-intel/vulnerabilities/id/469a9c8a-0708-4c93-99d8-e9157a1f91f5?source=cve
- https://github.com/anssilaitila/shared-files/blob/master/admin/class-sf-admin-allow-more-file-types.php
- https://wordpress.org/plugins/shared-files/#developers
- https://plugins.trac.wordpress.org/changeset/3304053/
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Details
- Published
- 2025-06-03
- Last updated
- 2026-04-08
- State
- Published
- Assigner (CNA)
- Wordfence
Exploit prediction (EPSS)
0.37%
Probability of exploitation in 30 days
31.8%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')