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TI-2026-34200 Aliases CVE-2026-46511GHSA-x3x5-7h4h-gwxg

HAXcms: Mass Token Exfiltration and Cross-Tenant Hijack

Priority HIGH 73CWE-522Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure, Cross-site scripting
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-522 and CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00275 20th percentileScored 2026-11-07
Fix Fixed haxcms-nodejs (haxtheweb): 26.0.0haxcms-php (haxtheweb): 26.0.0+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
haxthewebhaxcms-nodejsbefore 26.0.026.0.0Patch availableCNA
haxthewebhaxcms-phpbefore 26.0.026.0.0Patch availableCNA
—@haxtheweb/haxcms-nodejs (npm)before 26.0.026.0.0Patch availableGHSA-x3x5-7h4h-gwxg
  • haxcms-nodejs Vendorhaxtheweb Affected before 26.0.0 Fixed in 26.0.0 Patch available CNA
  • haxcms-php Vendorhaxtheweb Affected before 26.0.0 Fixed in 26.0.0 Patch available CNA
  • @haxtheweb/haxcms-nodejs (npm) Vendor— Affected before 26.0.0 Fixed in 26.0.0 Patch available GHSA-x3x5-7h4h-gwxg

Remediation

  • Fix · CNA haxcms-nodejs (haxtheweb) Fixed in 26.0.0
  • Fix · CNA haxcms-php (haxtheweb) Fixed in 26.0.0
  • Fix · GHSA-x3x5-7h4h-gwxg @haxtheweb/haxcms-nodejs (npm) Fixed in 26.0.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-46511
  2. 2026-10-03 Alias added: GHSA-x3x5-7h4h-gwxg

References

Advisory 1

Other 2

  • TI-2026-34109 HAX CMS Vulnerable to Private Key Disclosure via Broken HMAC Implementation CVSS 4.0CRITICAL 9.3
  • TI-2026-34105 HAX open-apis: Credential Theft via Server-Side Request Forgery (SSRF) in open-apis CVSS 4.0HIGH 8.7
  • TI-2026-27339 HAX CMS's public /server-status endpoint exposes authentication tokens, user activity, and client IP addresses CVSS 4.0HIGH 8.7
  • TI-2026-34113 Authenticated Remote Code Execution via File Overwrite CVSS 4.0CRITICAL 9.4
  • TI-2025-23152 HAX CMS PHP allows Insecure File Upload to Lead to Remote Code Execution CVSS 3.1CRITICAL 10.0
  • TI-2026-34194 HAX CMS: Stored XSS via '<video-player>' component allows arbitrary JavaScript execution and token theft CVSS 4.0CRITICAL 9.3
See all 32 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences