{"cve":"CVE-2026-44990","nvd":{"published":"2026-06-12T21:16:22.447","modified":"2026-10-26T11:10:00.157","status":"Deferred","description":"ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. Under the default configuration, versions of `sanitize-html` prior to 2.17.4 can turn attacker-controlled content inside a disallowed `xmp` element into live HTML or JavaScript. This is a sanitizer bypass in the default `disallowedTagsMode: 'discard'` path and can lead to stored XSS in applications that render sanitized output back to users. Version 2.17.4 patches the issue.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","score":9.3},"cwes":["CWE-79"],"references":["https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-rpr9-rxv7-x643","https://access.redhat.com/errata/RHSA-2026:36882","https://access.redhat.com/errata/RHSA-2026:36883","https://access.redhat.com/errata/RHSA-2026:40262","https://access.redhat.com/errata/RHSA-2026:41031"],"products":[],"source":"nvd","synced_at":"2026-10-26T11:33:08.859761529+00:00"},"epss":{"cve":"CVE-2026-44990","score":0.00684,"percentile":0.52293,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-rpr9-rxv7-x643","url":"https://osv.dev/vulnerability/GHSA-rpr9-rxv7-x643","summary":"Apostrophe has default XSS via `xmp` raw-text passthrough in `sanitize-html`","modified":"2026-06-12T22:15:09.904940901Z","packages":[{"ecosystem":"npm","name":"sanitize-html","purl":"pkg:npm/sanitize-html","ranges":[">=2.17.3 <2.17.4"],"fixed":["2.17.4"]}]}],"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."]}