CVE-2024-23336

5.0 · MEDIUM

Published May 1, 2024 mybb CWE-184 EPSS 0.46% (38th pctl) CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

Overview

CVE-2024-23336 is a medium-severity vulnerability affecting mybb mybb. It was published on May 1, 2024 and has a CVSS 3.1 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical Description

MyBB is a free and open source forum software. The default list of disallowed remote hosts does not contain the `127.0.0.0/8` block, which may result in a Server-Side Request Forgery (SSRF) vulnerability. The Configuration File's _Disallowed Remote Addresses_ list (`$config['disallowed_remote_addresses']`) contains the address `127.0.0.1`, but does not include the complete block `127.0.0.0/8`. MyBB 1.8.38 resolves this issue in default installations. Administrators of installed boards should update the existing configuration (`inc/config.php`) to include all addresses blocked by default. Additionally, users are advised to verify that it includes any other IPv4 addresses resolving to the server and other internal resources. Users unable to upgrade may manually add 127.0.0.0/8' to their disallowed address list.

Remediation

Check the references section for vendor advisories and patches from mybb. Update mybb to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor	Product	Versions	Status
mybb	mybb	>= 0, < 1.8.38	Affected

References

Ref docs.mybb.com/1.8/administration/configuration-file GitHub github.com/mybb/mybb/commit/d6a96019025de9149014e06b1df252e6122e5630 GitHub github.com/mybb/mybb/security/advisories/GHSA-qfrj-65mv-h75h Ref mybb.com/versions/1.8.38 Ref docs.mybb.com/1.8/administration/configuration-file GitHub github.com/mybb/mybb/commit/d6a96019025de9149014e06b1df252e6122e5630 GitHub github.com/mybb/mybb/security/advisories/GHSA-qfrj-65mv-h75h Ref mybb.com/versions/1.8.38

Frequently Asked Questions

What is CVE-2024-23336?

CVE-2024-23336 is a medium-severity vulnerability affecting mybb mybb. It was published on May 1, 2024 and has a CVSS 3.1 base score of 5.0 (MEDIUM).

How severe is CVE-2024-23336?

This vulnerability has a CVSS 3.1 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-23336?

How can CyberStrike help with CVE-2024-23336?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-23336 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

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