Vulnerability Details CVE-2023-0556
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 54.7%
CVSS Severity
CVSS v3 Score 9.8
Products affected by CVE-2023-0556
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cpe:2.3:a:contentstudio:contentstudio:-
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cpe:2.3:a:contentstudio:contentstudio:1.0.8
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cpe:2.3:a:contentstudio:contentstudio:1.0.9
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cpe:2.3:a:contentstudio:contentstudio:1.1.0
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cpe:2.3:a:contentstudio:contentstudio:1.1.1
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cpe:2.3:a:contentstudio:contentstudio:1.1.2
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cpe:2.3:a:contentstudio:contentstudio:1.1.3
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cpe:2.3:a:contentstudio:contentstudio:1.1.4
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cpe:2.3:a:contentstudio:contentstudio:1.1.5
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cpe:2.3:a:contentstudio:contentstudio:1.1.6
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cpe:2.3:a:contentstudio:contentstudio:1.1.8
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cpe:2.3:a:contentstudio:contentstudio:1.1.9
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cpe:2.3:a:contentstudio:contentstudio:1.2.0
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cpe:2.3:a:contentstudio:contentstudio:1.2.1
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cpe:2.3:a:contentstudio:contentstudio:1.2.2
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cpe:2.3:a:contentstudio:contentstudio:1.2.3
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cpe:2.3:a:contentstudio:contentstudio:1.2.4
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cpe:2.3:a:contentstudio:contentstudio:1.2.5