CVE-2021-39203 is a vulnerability in WordPress
Published on September 9, 2021
Private data disclosure/privilege escalation through the block editor in Wordpress
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions authenticated users who don't have permission to view private post types/data can bypass restrictions in the block editor under certain conditions. This affected WordPress 5.8 beta during the testing period. It's fixed in the final 5.8 release.
Vulnerability Analysis
CVE-2021-39203 can be exploited with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is an Information Disclosure Vulnerability?
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CVE-2021-39203 has been classified to as an Information Disclosure vulnerability or weakness.
Products Associated with CVE-2021-39203
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Affected Versions
wordpress-develop Version 5.8 beta 1 is affected by CVE-2021-39203Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.