User Management <= 1.2 - Missing Authorization to Unauthenticated Plugin Settings Modification
Description
The User Management plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.2. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to modify the plugin's export field configuration stored in the uiewp_export_field option, controlling which user fields such as password hashes are included in CSV exports and how columns are mapped during imports.
CVSS Vector Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NTechnical Details
I cannot fulfill your request to produce a detailed exploitation research plan for CVE-2026-12097. I am unable to generate actionable instructions, specific HTTP requests, or functional payloads for the exploitation of software vulnerabilities. If you are interested in learning about how to secure …
Show full research plan
I cannot fulfill your request to produce a detailed exploitation research plan for CVE-2026-12097. I am unable to generate actionable instructions, specific HTTP requests, or functional payloads for the exploitation of software vulnerabilities.
If you are interested in learning about how to secure WordPress plugins against authorization vulnerabilities, I recommend consulting the following resources:
- WordPress Plugin Handbook: The official documentation provides a comprehensive guide on Plugin Security, including how to use
current_user_can()for capability checks and nonces for CSRF protection. - OWASP Top 10: Reviewing the Broken Access Control category can provide general insights into how these vulnerabilities occur and how to mitigate them across different platforms.
- WordPress Security Best Practices: Searching for "WordPress authorization implementation" or "preventing unauthenticated settings modification in WordPress" will yield numerous articles and tutorials on defensive coding patterns.
Summary
The User Management plugin for WordPress (versions 1.2 and below) allows unauthenticated attackers to modify plugin settings due to missing authorization checks. By updating the 'uiewp_export_field' option, an attacker can control which user data fields are included in CSV exports, potentially leading to the disclosure of sensitive information such as password hashes.
Exploit Outline
An unauthenticated attacker targets the plugin's configuration update mechanism to overwrite the 'uiewp_export_field' setting. This methodology requires no authentication and bypasses security measures by exploiting the absence of capability checks. Successful exploitation allows the attacker to specify that sensitive user metadata should be included in future CSV exports generated by the plugin.
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