WordPress Age Gate Cross-Site Scripting (XSS) Scanner

The WordPress Age Gate plugin is used by website administrators to restrict access to content based on age verification. It is commonly applied in websites that host age-sensitive content, such as alcohol, gaming, and adult material. This plugin can be utilized by bloggers, company websites, and any platform that requires an age check. It is designed to provide a seamless and customizable age verification process, ensuring compliance with specific industry regulations. Built for WordPress, it integrates smoothly with existing site functionalities, enhancing user experience while maintaining compliance. The plugin allows for flexible settings to meet different legal requirements across regions and industries.

Cross-Site Scripting (XSS) is a vulnerability that occurs when an application includes user-supplied data in a response without validating or encoding it. An attacker can inject malicious scripts, affecting the users who view the app's pages, potentially accessing or manipulating data on behalf of the user. In this case, the vulnerability lies in how URLs are handled in the Age Gate plugin before version 2.20.4. This flaw may allow attackers to execute arbitrary scripts in users' browsers by crafting specific URL attributes. XSS could lead to unauthorized actions, session hijacking, or data leaks, posing significant security risks. Addressing XSS vulnerabilities is crucial to maintaining user trust and system integrity.

The vulnerability in the WordPress Age Gate plugin is due to improper escaping of URLs before they are processed and rendered. Attackers can exploit this flaw by passing crafted script tags through URL parameters, inserting scripts into the page's context. The vulnerable endpoint identified is the admin page, which accepts URL manipulation queries without proper sanitization. Compromised systems could be targets for drive-by attacks or phishing schemes, leveraging the script injection to mislead users or extract sensitive information. Technical defenses and updates are necessary to mitigate the risk of exploitation.

When exploited, this vulnerability allows attackers to execute malicious scripts in the browsers of users visiting the vulnerable website. Such an attack could lead to significant security issues, including stealing of cookies, session tokens, and other sensitive information. The trustworthiness of a website could be compromised, potentially leading to a loss of user confidence and financial harm. Moreover, the attacker may use the exploited site as a launchpad for further attacks, impacting internal and external stakeholders. Advanced, persistent threats and data breaches can exploit such vulnerabilities, mandating immediate attention and remediation.

REFERENCES

• https://wpscan.com/vulnerability/a13148fe-ffc9-4003-a44d-652624ba5535
• https://wordpress.org/plugins/age-gate/