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Vulnerabilities

Vulnerability · CVE-2025-4392

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, an

Published Jun 3, 2025 · catalog updated Apr 8, 2026 · Shared Files – Frontend File Upload Form & Secure File Sharing

Check if you run it

No confirmed exploitation is on record for CVE-2025-4392. EPSS is 0.36%. Act only if a listed version of Shared Files – Frontend File Upload Form & Secure File Sharing is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.2
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.36%
Remediation
Vendor / distro source
Affected products
vendor anssilaitila Shared Files – Frontend File Upload Form & Secure File Sharing 0 ≤1.7.48

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor anssilaitila Shared Files – Frontend File Upload Form & Secure File Sharing 0 ≤1.7.480 ≤1.7.48

How to fix CVE-2025-4392

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-4392. EPSS is 0.36%. Act only if a listed version of Shared Files – Frontend File Upload Form & Secure File Sharing is installed.

Which versions are affected?

Compare what you have installed with anssilaitila Shared Files – Frontend File Upload Form & Secure File Sharing 0 ≤1.7.48 0 ≤1.7.48. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.36%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 3, 2025 · EUVD

    Detected

    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

  2. Apr 8, 2026 · EUVD

    Updated

    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

Sources

  • CVE.orgVulnerability recordCVE-2025-4392

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-4392

    30-day exploitation probability 0.4%

    first.org
  • EUVDVulnerability recordEUVD-2025-16717

    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_f

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.