Security Vulnerabilities - CVEs Published In April 2021
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.
CVSS Score
5.4
EPSS Score
0.001
Published
2021-04-05
By default, the WP Page Builder WordPress plugin before 1.2.4 allows subscriber-level users to edit and make changes to any and all posts pages - user roles must be specifically blocked from editing posts and pages.
CVSS Score
4.3
EPSS Score
0.002
Published
2021-04-05
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.
CVSS Score
5.4
EPSS Score
0.004
Published
2021-04-05
The WP Super Cache WordPress plugin before 1.7.2 was affected by an authenticated (admin+) RCE in the settings page due to input validation failure and weak $cache_path check in the WP Super Cache Settings -> Cache Location option. Direct access to the wp-cache-config.php file is not prohibited, so this vulnerability can be exploited for a web shell injection.
CVSS Score
7.2
EPSS Score
0.024
Published
2021-04-05
There is an open redirect in the PhastPress WordPress plugin before 1.111 that allows an attacker to malform a request to a page with the plugin and then redirect the victim to a malicious page. There is also a support comment from another user one year ago (https://wordpress.org/support/topic/phast-php-used-for-remote-fetch/) that says that the php involved in the request only go to whitelisted pages but it's possible to redirect the victim to any domain.
CVSS Score
6.1
EPSS Score
0.119
Published
2021-04-05
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.
CVSS Score
5.4
EPSS Score
0.003
Published
2021-04-05
The WooCommerce Help Scout WordPress plugin before 2.9.1 (https://woocommerce.com/products/woocommerce-help-scout/) allows unauthenticated users to upload any files to the site which by default will end up in wp-content/uploads/hstmp.
CVSS Score
9.8
EPSS Score
0.672
Published
2021-04-05
The Database Backups WordPress plugin through 1.2.2.6 does not have CSRF checks, allowing attackers to make a logged in user unwanted actions, such as generate backups of the database, change the plugin's settings and delete backups.
CVSS Score
8.1
EPSS Score
0.004
Published
2021-04-05
The Plus Addons for Elementor Page Builder WordPress plugin before 4.1.7 was being actively exploited to by malicious actors to bypass authentication, allowing unauthenticated users to log in as any user (including admin) by just providing the related username, as well as create accounts with arbitrary roles, such as admin. These issues can be exploited even if registration is disabled, and the Login widget is not active.
CVSS Score
9.8
EPSS Score
0.821
Published
2021-04-05
The JH 404 Logger WordPress plugin through 1.1 doesn't sanitise the referer and path of 404 pages, when they are output in the dashboard, which leads to executing arbitrary JavaScript code in the WordPress dashboard.
CVSS Score
5.4
EPSS Score
0.213
Published
2021-04-05