CVE-2025-13144: ContentStudio <= 1.3.7 - Cross-Site Request Forgery to Settings Update

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-05 · updated 2026-10-18
Weakness: CWE-352

Description

The ContentStudio plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.3.7. This is due to missing or insufficient nonce validation on the add_cstu_settings function. This makes it possible for unauthenticated attackers to modify plugin settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

ContentStudio: through 1.3.7

References

https://plugins.trac.wordpress.org/browser/contentstudio/tags/1.3.7/contentstudio-plugin.php#L380
https://plugins.trac.wordpress.org/browser/contentstudio/tags/1.3.7/contentstudio-plugin.php#L383
https://plugins.trac.wordpress.org/changeset/3412182/
https://www.wordfence.com/threat-intel/vulnerabilities/id/047fd07c-ab07-49bf-8a94-8ae33c92f93e?source=cve

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