{"cve":"CVE-2026-48527","nvd":{"published":"2026-05-29T13:16:23.133","modified":"2026-07-21T12:10:00.090","status":"Deferred","description":"HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are affected by a stored cross-site scripting (XSS) vulnerability in the `/system/api/saveNode` endpoint. An authenticated user with a permission to edit pages can bypass the HTML sanitizer by injecting an event handler attribute without whitespace before the attribute name. @haxtheweb/haxcms-nodejs 26.0.1 and haxcms-php 26.0.2 patch the issue.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","score":8.7},"cwes":["CWE-79"],"references":["https://github.com/haxtheweb/issues/security/advisories/GHSA-g2g8-95qg-v35h","https://github.com/haxtheweb/issues/security/advisories/GHSA-g2g8-95qg-v35h"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:37:48.043517290+00:00"},"epss":{"cve":"CVE-2026-48527","score":0.00228,"percentile":0.13609,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-g2g8-95qg-v35h","url":"https://osv.dev/vulnerability/GHSA-g2g8-95qg-v35h","summary":"HaxCMS has a stored Cross-Site Scripting (XSS) bypass in its saveNode endpoint","modified":"2026-09-10T03:50:46.852398711Z","packages":[{"ecosystem":"npm","name":"@haxtheweb/haxcms-nodejs","purl":"pkg:npm/%40haxtheweb/haxcms-nodejs","ranges":["<26.0.1"],"fixed":["26.0.1"]}]}],"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."]}