jQuery 1.12.3 represents a minor update to the widely-used JavaScript library, building upon the foundation established by version 1.12.2. Both versions maintain the core functionality for simplifying DOM manipulation, event handling, and AJAX interactions, remaining essential tools for web developers. Notably, both iterations rely on the same suite of development dependencies, including Grunt for task automation, JSDOM for testing in a simulated browser environment, and QUnit for unit testing. Developers familiar with the 1.12.x branch will find a consistent development experience across these versions.
Key differences between 1.12.3 and 1.12.2 are subtle, potentially addressing bug fixes, performance improvements, or minor compatibility adjustments. While the data doesn't explicitly detail these changes, upgrading from 1.12.2 to 1.12.3 aims to enhance stability and ensure optimal performance. These versions continue to be licensed under the MIT license, encouraging free use and modification. The adoption of version 1.12.3 ensures developers benefit from the latest refinements within this stable branch, preserving backward compatibility and minimizing potential disruption to existing projects. The release date of 1.12.3 is later than 1.12.2, which clearly indicates that this is the upgrade. Developers should consult the official jQuery changelog for a comprehensive overview of the specific changes included in version 1.12.3.
All the vulnerabilities related to the version 1.12.3 of the package
Cross-Site Scripting (XSS) in jquery
Affected versions of jquery interpret text/javascript responses from cross-origin ajax requests, and automatically execute the contents in jQuery.globalEval, even when the ajax request doesn't contain the dataType option.
Update to version 3.0.0 or later.
XSS in jQuery as used in Drupal, Backdrop CMS, and other products
jQuery from 1.1.4 until 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles jQuery.extend(true, {}, ...) because of Object.prototype pollution. If an unsanitized source object contained an enumerable __proto__ property, it could extend the native Object.prototype.
Potential XSS vulnerability in jQuery
Passing HTML from untrusted sources - even after sanitizing it - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code.
This problem is patched in jQuery 3.5.0.
To workaround the issue without upgrading, adding the following to your code:
jQuery.htmlPrefilter = function( html ) {
return html;
};
You need to use at least jQuery 1.12/2.2 or newer to be able to apply this workaround.
https://blog.jquery.com/2020/04/10/jquery-3-5-0-released/ https://jquery.com/upgrade-guide/3.5/
If you have any questions or comments about this advisory, search for a relevant issue in the jQuery repo. If you don't find an answer, open a new issue.
Potential XSS vulnerability in jQuery
Passing HTML containing <option> elements from untrusted sources - even after sanitizing them - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code.
This problem is patched in jQuery 3.5.0.
To workaround this issue without upgrading, use DOMPurify with its SAFE_FOR_JQUERY option to sanitize the HTML string before passing it to a jQuery method.
https://blog.jquery.com/2020/04/10/jquery-3-5-0-released/
If you have any questions or comments about this advisory, search for a relevant issue in the jQuery repo. If you don't find an answer, open a new issue.