CVE-2024-8507

File Manager Pro <= 8.3.9 - Cross-Site Request Forgery to Arbitrary File Upload

2024-10-15 00:00
TANG Cheuk Hei (siunam)

Strategic Overview

Status
Patched in 8.3.10
Affected Plugin
File Manager Pro
Affected Version
<= 8.3.9
CVSS
8.8High
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2024-8507
View all File Manager Pro vulnerabilities

At a glance

CVE-2024-8507 is a high-severity Cross-Site Request Forgery (CSRF) vulnerability in the File Manager Pro WordPress plugin, affecting versions <= 8.3.9. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 8.3.10; sites on affected versions should update now. Disclosed October 2024, reported by TANG Cheuk Hei (siunam).

Vulnerability Overview

The File Manager Pro plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 8.3.9. This is due to missing or incorrect nonce validation on the 'mk_file_folder_manager' ajax action. This makes it possible for unauthenticated attackers to upload arbitrary files via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-352: Cross-Site Request Forgery (CSRF)

File Manager Pro <= 8.3.9 carries this weakness at mk_file_folder_manager, and reaching it takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For File Manager Pro the fix is 8.3.10: builds <= 8.3.9 are affected, anything from 8.3.10 onward is not.

Remediation

Update to version 8.3.10, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to File Manager Pro: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: File Manager Pro 8.3.10 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-8507https://www.wordfence.com/threat-intel/vulnerabilities/id/db70b37c-707a-47b8-a3a2-5a2b7d30de89https://nvd.nist.gov/vuln/detail/CVE-2024-8507

Related records

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