PT-2023-16360 · WordPress · Contentstudio

Marco Wotschka · Published 2023-01-27 · Updated 2026-04-08 · CVE-2023-0556

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions ContentStudio plugin for WordPress versions prior to 1.2.5

Description The issue is related to authorization bypass due to a missing capability check on several functions. This allows unauthenticated attackers to obtain blog metadata, including the plugin's contentstudio token, via the cstu get metadata function. Knowing this token enables other interactions with the plugin, such as creating posts.

Recommendations For versions prior to 1.2.5, update to version 1.2.5 or later, which adds other requirements to posting and updating, mitigating the risk of exploitation.

Exploit

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2023-0556

Affected Products

Contentstudio

References · 7

• 🔥 https://plugins.trac.wordpress.org/browser/contentstudio/tags/1.2.1/contentstudio-plugin.php#L517 · Exploit
• https://osv.dev/vulnerability/CVE-2023-0556 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-0556 · Security Note
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=2851006%40contentstudio%2Ftrunk&old=2844028%40contentstudio%2Ftrunk&sfp_email=&sfph_mail= · Patch
• https://wordfence.com/threat-intel/vulnerabilities/id/52db8d41-859a-4d68-8b83-3d3af8f1bf64?source=cve · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/52db8d41-859a-4d68-8b83-3d3af8f1bf64 · Note
• https://twitter.com/0dayPublishing/status/2041937638945403316 · Twitter Post