8.6
/ 10
HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Description
OWASP Java HTML Sanitizer is a configureable HTML Sanitizer written in Java, allowing inclusion of HTML authored by third-parties in web applications while protecting against XSS. In version 20240325.1, OWASP java html sanitizer is vulnerable to XSS if HtmlPolicyBuilder allows noscript and style tags with allowTextIn inside the style tag. This could lead to XSS if the payload is crafted in such a way that it does not sanitise the CSS and allows tags which is not mentioned in HTML policy. At time of publication no known patch is available.
AI Analysis
XSS vulnerability in OWASP Java HTML Sanitizer via noscript and style tags
Basic Information
ID
CVE-2025-66021
Source
GitHub_M
Published
Nov 26, 2025 at 01:53
Affected Product
Vendor
OWASP
Product
java-html-sanitizer
Version
= 20240325.1
Affected Versions
OWASP java-html-sanitizer = 20240325.1
CWE Classification
AI Assessment
AI Score
8.6 / 10
AI Severity
High
Vendor
OWASP
Product
Java HTML Sanitizer
Version
20240325.1