In the Elementor Website Builder WordPress plugin before 3.1.4, the icon box widget (includes/widgets/icon-box.php) accepts a ‘title_size’ parameter. Although the element control lists a fixed set of possible html tags, it is possible for a user with Contributor or above permissions to send a modified ‘save_builder’ request containing JavaScript in the ‘title_size’ parameter, which is not filtered and is output without escaping. This JavaScript will then be executed when the saved page is viewed or previewed.
CWE-79
CVE-2021-24206
In the Elementor Website Builder WordPress plugin before 3.1.4, the image box widget (includes/widgets/image-box.php) accepts a ‘title_size’ parameter. Although the element control lists a fixed set of possible html tags, it is possible for a user with Contributor or above permissions to send a modified ‘save_builder’ request containing JavaScript in the ‘title_size’ parameter, which is not filtered and is output without escaping. This JavaScript will then be executed when the saved page is viewed or previewed.
CVE-2021-24208
The editor of the WP Page Builder WordPress plugin before 1.2.4 allows lower-privileged users to insert unfiltered HTML, including JavaScript, into pages via the “Raw HTML” widget and the “Custom HTML” widgets (though the custom HTML widget requires sending a crafted request – it appears that this widget uses some form of client side validation but not server side validation), all of which are added via the “page_builder_data” parameter when performing the “wppb_page_save” AJAX action. It is also possible to insert malicious JavaScript via the “wppb_page_css” parameter (this can be done by closing out the style tag and opening a script tag) when performing the “wppb_page_save” AJAX action.
CVE-2021-24211
The WordPress Related Posts plugin through 3.6.4 contains an authenticated (admin+) stored XSS vulnerability in the title field on the settings page. By exploiting that an attacker will be able to execute JavaScript code in the user’s browser.
CVE-2021-24213
The GiveWP – Donation Plugin and Fundraising Platform WordPress plugin before 2.10.0 was affected by a reflected Cross-Site Scripting vulnerability inside of the administration panel, via the ‘s’ GET parameter on the Donors page.
CVE-2021-24214
The OpenID Connect Generic Client WordPress plugin 3.8.0 and 3.8.1 did not sanitise the login error when output back in the login form, leading to a reflected Cross-Site Scripting issue. This issue does not require authentication and can be exploited with the default configuration.