CVE-2025-13529
Unknown Unknown - Not Provided
Unauthorized Data Modification in Unify WordPress Plugin via Missing Capability Check

Publication date: 2026-01-07

Last updated on: 2026-04-08

Assigner: Wordfence

Description
The Unify plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'init' action in all versions up to, and including, 3.4.9. This makes it possible for unauthenticated attackers to delete specific plugin options via the 'unify_plugin_downgrade' parameter.
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Meta Information
Published
2026-01-07
Last Modified
2026-04-08
Generated
2026-06-16
AI Q&A
2026-01-07
EPSS Evaluated
2026-06-15
NVD
CVE-2025-13529
EUVD
EUVD-2026-1334
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
codeclouds unify to 3.4.9 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
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Compliance Impact

The provided information does not specify how the vulnerability affects compliance with common standards and regulations such as GDPR or HIPAA.

Executive Summary

The vulnerability in the Unify plugin for WordPress exists because there is a missing capability check on the 'init' action in all versions up to and including 3.4.9. This flaw allows unauthenticated attackers to delete specific plugin options by using the 'unify_plugin_downgrade' parameter, leading to unauthorized modification of data.

Impact Analysis

This vulnerability can impact you by allowing unauthenticated attackers to delete certain plugin options without permission. This unauthorized modification can disrupt the plugin's normal operation, potentially causing loss of configuration or functionality within your WordPress site that uses the Unify plugin.

Mitigation Strategies

To mitigate this vulnerability, immediately update the Unify WordPress plugin to a version later than 3.4.9 where the missing capability check on the 'init' action is fixed. Until an update is applied, restrict access to the WordPress admin area and monitor for any unusual deletion of plugin options, especially those triggered by the 'unify_plugin_downgrade' parameter. Consider disabling or restricting the plugin if possible to prevent exploitation by unauthenticated attackers.

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