CVE-2026-46511

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/haxtheweb/issues/security/advisories/GHSA-x3x5-7h4h-gwxg
https://github.com/haxtheweb/issues/security/advisories/GHSA-x3x5-7h4h-gwxg

Configurations

No configuration.

History

08 Jun 2026, 17:16

Type	Values Removed	Values Added
References	~~() https://github.com/haxtheweb/issues/security/advisories/GHSA-x3x5-7h4h-gwxg -~~	() https://github.com/haxtheweb/issues/security/advisories/GHSA-x3x5-7h4h-gwxg -

05 Jun 2026, 19:20

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-05 19:16

Updated : 2026-06-08 17:16

NVD link : CVE-2026-46511

Mitre link : CVE-2026-46511

CVE.ORG link : CVE-2026-46511

JSON object : View

Products Affected

No product.

CWE

CWE-79

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

CWE-522

Insufficiently Protected Credentials

CWE-922

Insecure Storage of Sensitive Information

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