CVE-2026-0594 Scanner

WordPress List Site Contributors plugin is a tool used by WordPress site administrators to display a list of contributors to their websites. This plugin is typically used by bloggers and content-rich sites where acknowledging and showcasing contributors is essential. It allows site managers to easily configure and manage the visibility of contributors on the site. Users leverage this tool to encourage engagement and build community credibility by showcasing contributions in a publicly accessible format. The plugin is widely used due to its ease of integration with WordPress systems and its capability to handle input from multiple contributors. Additionally, it provides functionalities to sort and filter contributor data as per the webmasters' preferences.

Cross-Site Scripting (XSS) vulnerabilities are a critical security concern that allows attackers to inject malicious scripts into web pages viewed by others. Such vulnerabilities are usually a result of insufficient input validation and poor sanitization practices. This can lead to unauthorized actions on behalf of the user, data theft, and compromised user accounts. Specifically, reflected XSS occurs when user inputs are included in the HTML output without proper sanitization, causing malicious scripts to be executed in unsuspecting users' browsers. The WordPress List Site Contributors plugin vulnerability in question allows exploitation by attackers through manipulated input in the alpha' parameter. Successful exploitation necessitates user interaction to execute the attacker's script.

This vulnerability affects the alpha' parameter due to inadequate sanitization procedures, which are responsible for filtering user input. Attackers can manipulate this parameter to inject scripts that perform actions such as stealing cookie data or redirecting users to malicious sites. The endpoint vulnerable to these attacks is primarily the page that renders contributor data, where user input is reflected back to the HTML output. Exploitability is increased in cases where website configurations lack robust input validations or where administrators are unaware of the vulnerability. Remediation would typically involve updating the plugin to incorporate necessary sanitization measures to prevent injection attacks.

If exploited, this XSS vulnerability may result in unauthorized execution of scripts, which could lead to unauthorized data access, including personal user information or administrative control panels. Malicious actors could exploit this to steal session cookies, which can be used to impersonate authenticated users. Additionally, attackers may perform actions without user consent, such as changing account settings or performing financial transactions. Long-term impacts include damage to the website's reputation, loss of customer trust, and potential financial losses due to legal and recovery expenses.

REFERENCES

• https://github.com/m4sh-wacker/CVE-2026-0594-ListSiteContributors-Plugin-Exploit
• https://www.wordfence.com/threat-intel/vulnerabilities/id/026a2e0d-4d30-4133-9118-055026aa9f4a?source=cve