CVE-2025-48940

MyBB is free and open source forum software. Prior to version 1.8.39, the upgrade component does not validate user input properly, which allows attackers to perform local file inclusion (LFI) via a specially crafted parameter value. In order to exploit the vulnerability, the installer must be unlocked (no `install/lock` file present) and the upgrade script must be accessible (by re-installing the forum via access to `install/index.php`; when the forum has not yet been installed; or the attacker is authenticated as a forum administrator). MyBB 1.8.39 resolves this issue.
Configurations

No configuration.

History

02 Jun 2025, 16:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-06-02 16:15

Updated : 2025-06-02 17:32


NVD link : CVE-2025-48940

Mitre link : CVE-2025-48940

CVE.ORG link : CVE-2025-48940


JSON object : View

Products Affected

No product.

CWE
CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')