CVE-2024-12409 in SimplePress Forum Plugin
Summary
by MITRE • 01/30/2025
The Simple:Press Forum plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 's' parameter in all versions up to, and including, 6.10.11 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
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Analysis
by VulDB Data Team • 08/13/2025
The Simple:Press Forum plugin for WordPress represents a widely used community platform that enables users to create and manage discussion forums within WordPress environments. This particular vulnerability affects all versions up to and including 6.10.11, making it a significant security concern for WordPress administrators who rely on this plugin for their forum functionality. The vulnerability stems from inadequate input validation and output escaping mechanisms within the plugin's handling of user-supplied data, specifically the 's' parameter that is used for search functionality within the forum interface.
The technical flaw manifests as a reflected cross-site scripting vulnerability that occurs when the plugin fails to properly sanitize user input before rendering it in web pages. When an attacker crafts a malicious URL containing crafted script code within the 's' parameter, and successfully persuades a victim to click on this link, the malicious script gets executed in the victim's browser context. This reflected nature means the malicious payload is not stored on the server but is instead reflected back to the user through the web application's response, making it particularly dangerous for social engineering attacks.
The operational impact of this vulnerability extends beyond simple script execution, as it provides attackers with the capability to perform various malicious activities within the victim's browser session. Attackers could potentially steal session cookies, redirect users to malicious websites, deface forum pages, or even perform actions on behalf of authenticated users if they can bypass additional security measures. The vulnerability is particularly concerning because it does not require authentication, making it accessible to any attacker who can craft and distribute malicious links to forum users. This creates a vector for widespread exploitation across WordPress installations using the affected plugin version.
Mitigation strategies should prioritize immediate plugin updates to the latest available version where the vulnerability has been patched, as this addresses the core sanitization and escaping issues. Additionally, administrators should implement proper input validation at multiple levels including web application firewalls that can detect and block suspicious script patterns in URLs. The vulnerability aligns with CWE-79 which categorizes cross-site scripting flaws as a critical security weakness, and it maps to ATT&CK technique T1566 which covers social engineering tactics involving malicious links. Organizations should also consider implementing Content Security Policy headers to limit script execution capabilities and educate users about the dangers of clicking suspicious links, particularly in forum environments where user-generated content is common.