Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX <= 4.1.2 - Missing Authorization to Arbitrary Options Update
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 1.4%
exploitation probability
1.4%top 29% of all CVEs
observed exploitation
nono source reports it
The Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'postx_presets_callback' function in all versions up to, and including, 4.1.2. This makes it possible for authenticated attackers, with Contributor-level access and above, to change arbitrary options on affected sites. This can be used to enable new user registration and set the default role for new users to Administrator.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
https://plugins.trac.wordpress.org/browser/ultimate-post/trunk/classes/Styles.php#L160https://plugins.trac.wordpress.org/browser/ultimate-post/trunk/classes/Styles.php#L177https://plugins.trac.wordpress.org/changeset/3093815/https://www.wordfence.com/threat-intel/vulnerabilities/id/07a3db33-3787-4b63-835d-8e3026206842?source=cve