CVE-2026-46396

HAX CMS has a stored XSS via <iframe> that allows access to sensitive client-side data and account takeover

Published Jun 5, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Description
HAX CMS helps manage microsite universe with PHP or NodeJs backends. A stored cross-site scripting (XSS) vulnerability exists in versions prior to 26.0.0 due to improper sanitization of `<iframe>` elements. The application allows `javascript:` URIs in the `src` attribute, which are executed when a malicious page is viewed. This enables attackers to execute arbitrary JavaScript in the context of the victim’s browser and access sensitive data exposed to client-side scripts. Version 26.0.0 fixes the issue.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-jh3h-rpxg-fr36 Stored XSS via <iframe> in HAX CMS allows access to sensitive client-side data and account takeover
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Haxtheweb
Haxtheweb haxcms-nodejs
Haxtheweb iframe-loader
Haxtheweb video-player
Vendors & Products Haxtheweb
Haxtheweb haxcms-nodejs
Haxtheweb iframe-loader
Haxtheweb video-player
Type Values Removed Values Added
Description HAX CMS helps manage microsite universe with PHP or NodeJs backends. A stored cross-site scripting (XSS) vulnerability exists in versions prior to 26.0.0 due to improper sanitization of `<iframe>` elements. The application allows `javascript:` URIs in the `src` attribute, which are executed when a malicious page is viewed. This enables attackers to execute arbitrary JavaScript in the context of the victim’s browser and access sensitive data exposed to client-side scripts. Version 26.0.0 fixes the issue.
Title HAX CMS has a stored XSS via <iframe> that allows access to sensitive client-side data and account takeover
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jun 9, 2026, 2:36 PM
Reserved
May 13, 2026, 9:04 PM
Status
Deferred
Published
Jun 5, 2026, 7:16 PM
Modified
Jun 17, 2026, 10:53 AM