serialize-javascript vulnerabilities

serialize-javascript from 7.0.1 before 7.1.3 contains a cross-site scripting vulnerability. Attackers can break out of HTML script elements by ending serialized function source text with an unescaped </script.

Serialize JavaScript from version 7.1.1 until 7.1.2 does not fully protect serialized functions against script-closing tags in attacker-influenced function source. This can cause the script element to terminate early and the remaining output to be parsed as HTML, enabling cross-site scripting in the page origin. Only function values are affected, and the issue is fixed in version 7.1.2.

A flaw was found in npm-serialize-javascript where the module does not properly sanitize certain inputs like regex or other JavaScript object types, allowing an attacker to inject malicious code. This code can be executed during deserialization in a web browser, leading to Cross-site scripting (XSS) attacks.