CVE-2026-44990
CRITICALCVSS v3.1: 9.3 · EPSS: 0.0032 (24.1 percentile)
Source data as of:
At a glance
- Severity
- CRITICAL
- CVSS
- 9.3 v3.1 · NVD
- EPSS
- 0.0032 (24.1 percentile) · FIRST.org
- CISA KEV
- No
- Type
- XSS · NVD CWE
- Attack conditions (CVSS vector)
- NetworkNo privileges · Source: NVD Vector
- Published
- 2026-06-12 · Modified: 2026-06-30
- References
- Jump to references (4)
CVSS / EPSS / KEV
Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources
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.
References
Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.
- Vendor advisory https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-rpr9-rxv7-x643
- Distro https://access.redhat.com/security/cve/CVE-2026-44990
- Distro https://bugzilla.redhat.com/show_bug.cgi?id=2488565
- Distro https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44990.json