What the vulnerability does
01Description
The IDer Login for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'ider_login_button' shortcode in all versions up to, and including, 2.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This affects version 2.1, but was also patched in version 2.1 - a new version was not released with the patch.
Explanation of Vulnerability in Simple Terms
02Summary
The IDer Login plugin for WordPress versions 2.1 and earlier contains a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. These scripts execute in the browsers of other site visitors, potentially compromising their sessions or stealing sensitive data. The vulnerability affects the plugin's core functionality and can impact multiple users across the site.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in other users' browsers and steals their session data or credentials.
Potential impact on your site
04Site Impact
Authenticated users can inject scripts affecting other visitors; session hijacking and credential theft are possible.
Conditions required to exploit
05Prerequisites
Attacker must have a WordPress user account (any role) and network access to the site.
Key dates
06Disclosure timeline
December 14, 2024
CVE published
April 8, 2026
Record updated
