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VULNERABILITIES

CVE-2026-44990 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA: redhat-SADPCVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:36882 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:36883 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:40262 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:41031 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:41055 redhat-SADP

see all 32 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')redhat-SADP
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')[email protected]

Affected Products

ProductVersions
ApostropheCMS
All versions

CPE

  • cpe:2.3:a:apostrophecms:apostrophecms:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
sanitize-html
<= 2.17.3 (semver)

CPE

  • cpe:2.3:a:apostrophecms:sanitize-html:*:*:*:*:*:node.js:*:*

Remediation

  • Upgrade: 2.17.4moderate effort

Change History

37 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-44990
NVD Published Date:
Jun 12, 2026
NVD Last Modified:
Sep 10, 2026
Source:
[email protected]
CVE-2026-44990 Details - Not Deferred