Wordpress: Security Vulnerabilities
In WordPress 4.9.7, plugins uploaded via the admin area are not verified as being ZIP files. This allows for PHP files to be uploaded. Once a PHP file is uploaded, the plugin extraction fails, but the PHP file remains in a predictable wp-content/uploads location, allowing for an attacker to then execute the file. This represents a security risk in limited scenarios where an attacker (who does have the required capabilities for plugin uploads) cannot simply place arbitrary PHP code into a valid plugin ZIP file and upload that plugin, because a machine's wp-content/plugins directory permissions were set up to block all new plugins.
CVSS Score
7.2
EPSS Score
0.152
Published
2018-08-10
WordPress through 4.9.6 allows Author users to execute arbitrary code by leveraging directory traversal in the wp-admin/post.php thumb parameter, which is passed to the PHP unlink function and can delete the wp-config.php file. This is related to missing filename validation in the wp-includes/post.php wp_delete_attachment function. The attacker must have capabilities for files and posts that are normally available only to the Author, Editor, and Administrator roles. The attack methodology is to delete wp-config.php and then launch a new installation process to increase the attacker's privileges.
CVSS Score
8.8
EPSS Score
0.622
Published
2018-06-26
Before WordPress 4.9.5, the redirection URL for the login page was not validated or sanitized if forced to use HTTPS.
CVSS Score
6.1
EPSS Score
0.026
Published
2018-04-16
Before WordPress 4.9.5, the URL validator assumed URLs with the hostname localhost were on the same host as the WordPress server.
CVSS Score
6.1
EPSS Score
0.026
Published
2018-04-16
Before WordPress 4.9.5, the version string was not escaped in the get_the_generator function, and could lead to XSS in a generator tag.
CVSS Score
6.1
EPSS Score
0.043
Published
2018-04-16
WordPress before 4.4 makes it easier for remote attackers to predict password-recovery tokens via a brute-force approach.
CVSS Score
8.1
EPSS Score
0.046
Published
2018-04-12
In WordPress through 4.9.2, unauthenticated attackers can cause a denial of service (resource consumption) by using the large list of registered .js files (from wp-includes/script-loader.php) to construct a series of requests to load every file many times.
CVSS Score
7.5
EPSS Score
0.727
Published
2018-02-06
WordPress before 4.9.2 has XSS in the Flash fallback files in MediaElement (under wp-includes/js/mediaelement).
CVSS Score
6.1
EPSS Score
0.02
Published
2018-01-18
wp-admin/user-new.php in WordPress before 4.9.1 sets the newbloguser key to a string that can be directly derived from the user ID, which allows remote attackers to bypass intended access restrictions by entering this string.
CVSS Score
8.8
EPSS Score
0.07
Published
2017-12-02
wp-includes/functions.php in WordPress before 4.9.1 does not require the unfiltered_html capability for upload of .js files, which might allow remote attackers to conduct XSS attacks via a crafted file.
CVSS Score
5.4
EPSS Score
0.035
Published
2017-12-02