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Shared Files <= 1.7.48 — Unauthenticated Stored Cross-Site Scripting via sanitize_file Function

CVE-2025-4392Published · Updated

Action summary

Affected: ≤1.7.48Update to 1.7.49 or newer

All remediation steps
Watch plugin
Severity
High7.2
CVSS
7.2
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:C Scope
Changed
C:L Confidentiality
Low
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-79 Cross-Site Scripting
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Shared Files – File Upload & Download Manager shared-files

  1. Affected≤ 1.7.48
  2. Patched in1.7.49

Update to 1.7.49 or newer.

You are affected if you run ≤ 1.7.48. Version 1.7.49 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Shared Files – File Upload & Download Manager.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 1.7.49, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Shared Files – File Upload & Download Manager to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Martin Martin.

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.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Shared Files – File Upload & Download Manager

All 15
More vulnerabilities in Shared Files – File Upload & Download Manager
SeverityVulnerabilityCVEPublished
Critical9.1Unauthenticated Arbitrary File Deletion
<1.7.67Update to 1.7.67
CVE-2026-12513
Medium5.3Unauthenticated Limited File Upload
<1.7.67Update to 1.7.67
CVE-2026-12514
Medium6.4Authenticated (Contributor+) Server-Side Request Forgery
≤1.7.69Update to 1.7.70
CVE-2026-78269
Medium5.3Unauthenticated Path Traversal
≤1.7.64Update to 1.7.65
CVE-2026-49112
Medium4.3Authenticated (Contributor+) Arbitrary File Download
<1.7.58Update to 1.7.58
CVE-2025-15433

Same weakness (Cross-Site Scripting)

All Cross-Site Scripting
Other Cross-Site Scripting vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity high, CVSS 7.2

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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