CVE-2026-44990
Published:June 12, 2026
Updated:June 13, 2026
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.
Affected Packages
sanitize-html (NPM):
Affected version(s) =2.17.3 <2.17.4Fix Suggestion:
Update to version 2.17.4Related Resources (5)
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Contact UsCVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS
Base Score:
0.06