HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, an attack chain utilizing Stored XSS alongside dynamic token exposure in the `/system/api/connectionSettings` endpoint allows an authenticated attacker to perform a complete cross-tenant account takeover. The API dynamically leaks the active session's authentication tokens (including the `jwt`, `user_token`, `site_token`, and `appstore_token`) into a global JavaScript variable (`window.appSettings`). An attacker can exploit the XSS vulnerability to force a victim's browser to silently fetch their specific connection settings, extract the tokens, and exfiltrate them to an attacker-controlled webhook. Version 26.0.0 patches the issue.
Metrics
Affected Vendors & Products
References
History
Fri, 05 Jun 2026 20:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Haxtheweb
Haxtheweb haxcms-nodejs Haxtheweb haxcms-php |
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| Vendors & Products |
Haxtheweb
Haxtheweb haxcms-nodejs Haxtheweb haxcms-php |
Fri, 05 Jun 2026 19:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, an attack chain utilizing Stored XSS alongside dynamic token exposure in the `/system/api/connectionSettings` endpoint allows an authenticated attacker to perform a complete cross-tenant account takeover. The API dynamically leaks the active session's authentication tokens (including the `jwt`, `user_token`, `site_token`, and `appstore_token`) into a global JavaScript variable (`window.appSettings`). An attacker can exploit the XSS vulnerability to force a victim's browser to silently fetch their specific connection settings, extract the tokens, and exfiltrate them to an attacker-controlled webhook. Version 26.0.0 patches the issue. | |
| Title | HAXcms: Mass Token Exfiltration and Cross-Tenant Hijack | |
| Weaknesses | CWE-522 CWE-79 CWE-922 |
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| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-05T18:32:55.498Z
Reserved: 2026-05-14T19:12:32.754Z
Link: CVE-2026-46511
No data.
Status : Deferred
Published: 2026-06-05T19:16:34.267
Modified: 2026-06-05T19:20:19.607
Link: CVE-2026-46511
No data.
OpenCVE Enrichment
Updated: 2026-06-05T20:30:03Z