Support Board <= 3.8.0 - Unauthenticated Arbitrary File Deletion

2025-07-08 10:43

Foxyyy

Strategic Overview

Status

Patched in 3.8.1

Affected PluginSupport Board

Affected Version<= 3.8.0

CVSS9.8Critical

CVECVE-2025-4828

View all Support Board vulnerabilities

Vulnerability Overview

The Support Board plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the sb_file_delete function in all versions up to, and including, 3.8.0. This makes it possible for attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). An attacker can leverage CVE-2025-4855 vulnerability to exploit this vulnerability unauthenticated.

Technical Analysis

REMEDIATION: Update to version 3.8.1, or a newer patched version --- IDENTIFIER: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

External References

https://www.cve.org/CVERecord?id=CVE-2025-4828 https://www.wordfence.com/threat-intel/vulnerabilities/id/33989611-8640-4c33-a34e-14f10cd7286d

CVSS Vector

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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