SB2026021863 - Bamboo Data Center and Server update for Java HTML Sanitizer

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Main Vulnerability Database SB2026021863

SB2026021863 - Bamboo Data Center and Server update for Java HTML Sanitizer

Published: February 18, 2026

Security Bulletin ID SB2026021863
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Cross-site scripting (CVE-ID: CVE-2025-66021)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear


The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data if HtmlPolicyBuilder allows noscript and style tags with allowTextIn inside the style tag. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.



Remediation

Install update from vendor's website.

References