vulnerability
WordPress Plugin: contentstudio: CVE-2023-0556: Missing Authorization
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 10 | (AV:N/AC:L/Au:N/C:C/I:C/A:C) | Jan 6, 2023 | May 15, 2025 | May 5, 2026 |
Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
Jan 6, 2023
Added
May 15, 2025
Modified
May 5, 2026
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.
Solution
contentstudio-plugin-cve-2023-0556
References
Rapid7 Labs
2026 Global Threat Landscape Report
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