File Manager Pro <= 8.3.4 — Authenticated (Subscriber+) Arbitrary File Upload
CVE-2023-6846Published · Updated Action summary
Affected: ≤8.3.4Update to 8.3.5 or newer
All remediation steps- Severity
- High8.8
- CVSS
- 8.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
File Manager Pro wp-file-manager-pro
- Affected≤ 8.3.4
- Patched in8.3.5
Update to 8.3.5 or newer.
You are affected if you run ≤ 8.3.4. Version 8.3.5 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under File Manager Pro.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 8.3.5, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch File Manager Pro to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Tobias Weißhaar (kun_19).
The File Manager Pro plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 8.3.4 via the mk_check_filemanager_php_syntax AJAX function. This makes it possible for authenticated attackers, with subscriber access and above, to execute code on the server. Version 8.3.5 introduces a capability check that prevents users lower than admin from executing this function.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in File Manager Pro
All 8| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.5 | Directory Traversal to Arbitrary File Deletion ≤1.8.9Update to 1.9 | CVE-2025-0818 | |
| High7.4 | Unauthenticated Limited JavaScript File Upload ≤8.3.9Update to 8.3.10 | CVE-2024-8918 | |
| High7.5 | Unauthenticated Backup File Download and Upload ≤8.3.9Update to 8.3.10 | CVE-2024-8746 | |
| High8.8 | Cross-Site Request Forgery to Arbitrary File Upload ≤8.3.9Update to 8.3.10 | CVE-2024-8507 | |
| High8.8 | Authenticated (Subscriber+) Arbitrary File Upload ≤8.3.7Update to 8.3.8 | CVE-2024-7559 |
- Medium6.5Directory Traversal to Arbitrary File Deletion
≤1.8.9Update to 1.9
- High7.4Unauthenticated Limited JavaScript File Upload
≤8.3.9Update to 8.3.10
- High7.5Unauthenticated Backup File Download and Upload
≤8.3.9Update to 8.3.10
- High8.8Cross-Site Request Forgery to Arbitrary File Upload
≤8.3.9Update to 8.3.10
- High8.8Authenticated (Subscriber+) Arbitrary File Upload
≤8.3.7Update to 8.3.8
Timeline
CVE published
Severity high, CVSS 8.8
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. 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.