Blog-in-Blog <= 2.0.0 - Authenticated (Editor+) Local File Inclusion via Shortcode

2023-05-30 00:00

István Márton

Strategic Overview

Status

Patched in 2.0.1

Affected PluginBlog-in-Blog

Affected Version<= 2.0.0

CVSS7.2High

CVECVE-2023-2435

View all Blog-in-Blog vulnerabilities

Vulnerability Overview

The Blog-in-Blog plugin for WordPress is vulnerable to Local File Inclusion in versions up to, and including, 2.0.0 via a shortcode attribute. This allows editor-level, and above, attackers to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included.

Technical Analysis

REMEDIATION: Update to version 2.0.1, 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-2023-2435 https://www.wordfence.com/threat-intel/vulnerabilities/id/d53161ad-cc5f-4433-b288-a8095cdfd7db

CVSS Vector

7.2

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

Base

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

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