What the vulnerability does
01Description
The Simple History plugin for WordPress is vulnerable to sensitive data exposure via Detective Mode due to improper sanitization within the append_debug_info_to_context() function in versions prior to 5.8.1. When Detective Mode is enabled, the plugin’s logger captures the entire contents of $_POST (and sometimes raw request bodies or $_GET) without redacting any password‐related keys. As a result, whenever a user submits a login form, whether via native wp_login or a third‐party login widget, their actual password is written in clear text into the logs. An authenticated attacker or any user whose actions generate a login event will have their password recorded; an administrator (or anyone with database read access) can then read those logs and retrieve every captured password.
Explanation of Vulnerability in Simple Terms
02Summary
Simple History versions up to 5.8.1 contain an information disclosure vulnerability. An authenticated administrator can read sensitive data they should not have access to. The vulnerability requires high-level privileges and does not affect data integrity or availability. Update to a version newer than 5.8.1 to resolve this issue.
What an attacker can do
03Attacker Capabilities
Read sensitive information from the plugin that should be restricted from their access level.
Potential impact on your site
04Site Impact
Administrators with high privileges could access audit logs or configuration data beyond their intended scope.
Conditions required to exploit
05Prerequisites
Attacker must be authenticated as a WordPress administrator or user with equivalent privileges.
Key dates
06Disclosure timeline
June 6, 2025
CVE published
April 8, 2026
Record updated
