Cross-Site Scripting (XSS) Vulnerability in Nunjucks Prior to Version 3.2.4

CVE-2023-2142

What is CVE-2023-2142?

In earlier versions of Nunjucks, security weaknesses were identified related to its autoescape feature. These vulnerabilities allowed attackers to craft malicious payloads using backslash characters when two user-controlled parameters were present on the same line in the views. This flaw raised significant security concerns, particularly regarding cross-site scripting (XSS) attacks, where attackers could inject harmful scripts into web applications, potentially compromising user data and application integrity.

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References