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CVE-2023-0556

MEDIUM 6.5 CVSS 3.1
Published
January 27, 2023
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-862
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • contentstudio ContentStudio — Up to and including 1.2.5
  • contentstudio contentstudio — Before 1.2.6

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/contentstudio/tags/1.2.1/contentstudio-plugin.php#L517 Exploit, Third Party Advisory
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=2851006%40contentstudio%2Ftrunk&old=2844028%40contentstudio%2Ftrunk&sfp_email=&sfph_mail= Patch, Third Party Advisory
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/52db8d41-859a-4d68-8b83-3d3af8f1bf64?source=cve
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/52db8d41-859a-4d68-8b83-3d3af8f1bf64 Third Party Advisory
  • nvd.nist.gov Official NVD record