CVE-2012-6708

Open Source Vulnerabilities CVE-2012-6708

jQuery before 1.9.0 is vulnerable to Cross-site Scripting (XSS) attacks. The jQuery(strInput) function does not differentiate selectors from HTML in a reliable fashion. In vulnerable versions, jQuery determined whether the input was HTML by looking for the '<' character anywhere in the string, giving attackers more flexibility when attempting to construct a malicious payload. In fixed versions, jQuery only deems the input to be HTML if it explicitly starts with the '<' character, limiting exploitability only to attackers who can control the beginning of a string, which is far less common.

Open Source Vulnerabilities GHSA-2pqj-h3vj-pqgw

Affected versions of `jquery` are vulnerable to cross-site scripting. This occurs because the main `jquery` function uses a regular expression to differentiate between HTML and selectors, but does not properly anchor the regular expression. The result is that `jquery` may interpret HTML as selectors when given certain inputs, allowing for client side code execution. ## Proof of Concept ``` $("#log").html( $("element[attribute='<img src=\"x\" onerror=\"alert(1)\" />']").html() ); ``` ## Recommendation Update to version 1.9.0 or later.