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CVE-2025-49137

8.5 · HIGH

HAX CMS PHP allows users to manage their microsite universe with a PHP backend.

Published Jun 9, 2025CWE-79EPSS 0.27%

Overview

CVE-2025-49137 is a high-severity vulnerability. It was published on June 9, 2025 and has a CVSS 3.1 base score of 8.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

HAX CMS PHP allows users to manage their microsite universe with a PHP backend. Prior to version 11.0.0, the application does not sufficiently sanitize user input, allowing for the execution of arbitrary JavaScript code. The 'saveNode' and 'saveManifest' endpoints take user input and store it in the JSON schema for the site. This content is then rendered in the generated HAX site. Although the application does not allow users to supply a `script` tag, it does allow the use of other HTML tags to run JavaScript. Version 11.0.0 fixes the issue.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

GitHubgithub.com/haxtheweb/haxcms-php/commit/0dd3e98fe2fadd0793b667d4af2aac230980e0f8GitHubgithub.com/haxtheweb/issues/security/advisories/GHSA-2vc4-3hx7-v7v7GitHubgithub.com/haxtheweb/issues/security/advisories/GHSA-2vc4-3hx7-v7v7

How CyberStrike helps

Frequently asked questions

What is CVE-2025-49137?

CVE-2025-49137 is a high-severity vulnerability. It was published on June 9, 2025 and has a CVSS 3.1 base score of 8.5 (HIGH).

How severe is CVE-2025-49137?

This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-49137?

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

How can CyberStrike help with CVE-2025-49137?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-49137 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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