CVE-2023-0556
CRITICALContentStudio < 1.2.5 - Unauthenticated Authorization Bypass via Missing Capability Check
Title source: llmDescription
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.
References (4)
Core 4
Core References
Exploit, Third Party Advisory
https://plugins.trac.wordpress.org/browser/contentstudio/tags/1.2.1/contentstudio-plugin.php#L517
Patch, Third Party Advisory
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=2851006%40contentstudio%2Ftrunk&old=2844028%40contentstudio%2Ftrunk&sfp_email=&sfph_mail=
Scores
CVSS v3
9.8
EPSS
0.0095
EPSS Percentile
57.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-862
Status
published
Products (2)
contentstudio/ContentStudio
< 1.2.5
contentstudio/contentstudio
< 1.2.6
Published
Jan 27, 2023
Tracked Since
Feb 18, 2026