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CVE-2025-49137

Good to know:

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Date: June 9, 2025

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.

Severity Score

Related Resources (5)

https://nvd.nist.gov/vuln/detail/CVE-2025-49137
https://github.com/haxtheweb/issues
https://github.com/haxtheweb/issues/security/advisories/GHSA-2vc4-3hx7-v7v7
https://github.com/haxtheweb/haxcms-php/commit/0dd3e98fe2fadd0793b667d4af2aac230980e0f8
https://www.mend.io/vulnerability-database/CVE-2025-49137

Severity Score

Weakness Type (CWE)

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-79

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

CWE-80

Improper Neutralization of Alternate XSS Syntax

CWE-87

Top Fix

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Upgrade Version

Upgrade to version @haxtheweb/haxcms-nodejs - 11.0.0;https://github.com/haxtheweb/haxcms-php.git - 11.0.0;https://github.com/haxtheweb/haxcms-php.git - v11.0.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): LOW
Availability (A): NONE

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