CVE-2023-0556

Critical

Description

The ContentStudio plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on several functions in versions up to, and including, 1.2.5. This makes it possible for unauthenticated attackers to obtain the blog metadata (via the function cstu_get_metadata) that includes the plugin's contentstudio_token. Knowing this token allows for other interactions with the plugin such as creating posts in versions prior to 1.2.5, which added other requirements to posting and updating.

SeverityCritical
CVSS9.8
Exploit probability—
ProductContentstudio
PublishedJan 27, 2023
First seenJan 27, 2023

How to fix

Update
  • contentstudio contentstudio1.2.6 or later

Affected products

ProductAffected versionsFixed in
contentstudio contentstudiov < 1.2.61.2.6

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

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