Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affecting typo3/html-sanitizer package, versions <1.5.3>=2.0.0, <2.1.4


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.1% (44th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-PHP-TYPO3HTMLSANITIZER-6057588
  • published15 Nov 2023
  • disclosed14 Nov 2023
  • creditNiels Dossche, Yaniv Nizry

Introduced: 14 Nov 2023

CVE-2023-47125  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade typo3/html-sanitizer to version 1.5.3, 2.1.4 or higher.

Overview

Affected versions of this package are vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') due to improper handling of DOM processing instructions. An attacker can bypass the cross-site scripting mechanism and exploit this vulnerability.

CVSS Scores

version 3.1