Debian LTS: Security Advisory for wordpress (DLA-2269-1)

The remote host is missing an update for the 'wordpress' package(s) announced via the DLA-2269-1 advisory.

Several vulnerabilities were discovered in Wordpress, a web blogging tool. They allowed remote attackers to perform various Cross-Side Scripting (XSS) attacks, create open redirects, escalate privileges, and bypass authorization access. CVE-2020-4046 In affected versions of WordPress, users with low privileges (like contributors and authors) can use the embed block in a certain way to inject unfiltered HTML in the block editor. When affected posts are viewed by a higher privileged user, this could lead to script execution in the editor/wp-admin. CVE-2020-4047 In affected versions of WordPress, authenticated users with upload permissions (like authors) are able to inject JavaScript into some media file attachment pages in a certain way. This can lead to script execution in the context of a higher privileged user when the file is viewed by them. CVE-2020-4048 In affected versions of WordPress, due to an issue in wp_validate_redirect() and URL sanitization, an arbitrary external link can be crafted leading to unintended/open redirect when clicked. CVE-2020-4049 In affected versions of WordPress, when uploading themes, the name of the theme folder can be crafted in a way that could lead to JavaScript execution in /wp-admin on the themes page. This does require an admin to upload the theme, and is low severity self-XSS. CVE-2020-4050 In affected versions of WordPress, misuse of the `set-screen-option` filter's return value allows arbitrary user meta fields to be saved. It does require an admin to install a plugin that would misuse the filter. Once installed, it can be leveraged by low privileged users.

'wordpress' package(s) on Debian Linux.

Checks if a vulnerable package version is present on the target host.

For Debian 8 'Jessie', these problems have been fixed in version 4.1.31+dfsg-0+deb8u1. We recommend that you upgrade your wordpress packages.