Cross-Site Request Forgery in ContentMX Content Publisher Plugin for WordPress
CVE-2025-9889

4.3MEDIUM

Key Information:

Vendor

WordPress
Status
Contentmx Content Publisher
Vendor
CVE Published:
3 October 2025

What is CVE-2025-9889?

The ContentMX Content Publisher plugin for WordPress is susceptible to Cross-Site Request Forgery due to inadequate nonce validation in the cmx_activate_connection function. This vulnerability allows unauthenticated attackers to execute actions on behalf of a legitimate site administrator by manipulating them into clicking a malicious link. Such actions could lead to unauthorized binding of connections, posing a significant security risk to WordPress sites using this plugin.

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Deploy the Patch

Affected Version(s)

ContentMX Content Publisher * <= 1.0.6

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/contentmx-cont...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jonas Benjamin Friedli
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