Arbitrary File Upload Vulnerability in WP-BusinessDirectory by WordPress
CVE-2026-39591

9.9CRITICAL

Key Information:

Vendor

WordPress
Status
WP-businessdirectory
Vendor
CVE Published:
15 June 2026

What is CVE-2026-39591?

A vulnerability exists in the WP-BusinessDirectory plugin for WordPress, which allows unauthorized users to upload arbitrary files. This flaw could enable attackers to exploit the system, potentially leading to unauthorized access and execution of malicious code. It is critical for users of WP-BusinessDirectory versions up to 4.0.0 to take immediate action to mitigate the risks associated with this vulnerability.

Affected Version(s)

WP-BusinessDirectory <= 4.0.0

References

https://patchstack.com/database/wordpress/plugin/wp-busin...
vdb-entry

CVSS V3.1

Score:
9.9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jarno Vos (jrn5151) | Patchstack Bug Bounty Program
.