{"cve":"CVE-2026-46511","nvd":{"published":"2026-06-05T19:16:34.267","modified":"2026-06-17T10:53:44.377","status":"Deferred","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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.7},"cvss_v3":null,"cwes":["CWE-79","CWE-522","CWE-922"],"references":["https://github.com/haxtheweb/issues/security/advisories/GHSA-x3x5-7h4h-gwxg","https://github.com/haxtheweb/issues/security/advisories/GHSA-x3x5-7h4h-gwxg"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:37:48.043517290+00:00"},"epss":{"cve":"CVE-2026-46511","score":0.00275,"percentile":0.20008,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-x3x5-7h4h-gwxg","url":"https://osv.dev/vulnerability/GHSA-x3x5-7h4h-gwxg","summary":"HAXcms: Mass Token Exfiltration and Cross-Tenant Hijack ","modified":"2026-09-10T03:50:48.019529036Z","packages":[{"ecosystem":"npm","name":"@haxtheweb/haxcms-nodejs","purl":"pkg:npm/%40haxtheweb/haxcms-nodejs","ranges":["<26.0.0"],"fixed":["26.0.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}