CVE-2026-24128 Scanner

The XWiki Platform Distribution Flavor Main is a comprehensive collaborative software platform widely used for creating and managing wikis. Developed by XWiki, it serves both small teams and large organizations by providing robust content management and collaboration features. The software is often deployed on web servers and accessed via web browsers, making it an essential tool for documentation and community-driven projects. Its extensible architecture allows customization through extensions and plugins, making it adaptable to various organizational needs. Users typically leverage XWiki for team collaboration, knowledge sharing, and project management purposes. By offering open-source solutions, XWiki has become a favored choice for enterprises looking to maintain control over their data and customize their platforms extensively.

Cross-Site Scripting (XSS) vulnerabilities occur when an application allows injection of malicious scripts into web pages viewed by other users. This vulnerability in the XWiki Platform Distribution Flavor Main affects versions prior to 17.6.0 and arises due to improper sanitization of user input. An attacker can exploit this flaw by injecting malicious JavaScript through the 'extensionId' parameter. When this script is executed in the context of a victim's browser, it can lead to significant security issues like session hijacking. The wide-ranging impact of XSS can enable attackers to conduct unauthorized actions, deface websites, or redirect users to malicious sites. It remains an ongoing concern for web applications handling user-generated content.

The XSS vulnerability in the XWiki Platform arises specifically within the 'extensionId' parameter of certain web requests. When user input is improperly sanitized, attackers can introduce scripts that execute under the context of the hosting domain. By crafting a request containing a malicious script, such as '', attackers can potentially capture sensitive information or alter the user experience. The vulnerability is identified using indicators like the presence of 'xwiki.extension.job' and web responses that include 'text/html' with status code 200. This situation reflects the challenges of maintaining input validation and output encoding in complex web applications.

If successfully exploited, this Cross-Site Scripting (XSS) vulnerability could facilitate a range of harmful activities. A potential attacker might carry out session hijacking, which involves stealing users' session cookies to impersonate them. It could also lead to the unauthorized execution of actions on behalf of the user, such as modifying content or altering access controls. Furthermore, attackers could use this flaw to deploy phishing attacks, presenting genuine-looking pages to harvest credentials. The execution of such scripts can compromise user trust and damage the platform's reputation by enabling unauthorized actions that appear legitimate. These impacts highlight the necessity of robust input validation and output sanitization practices in web development.

REFERENCES

• https://jira.xwiki.org/browse/XWIKI-23462
• https://nvd.nist.gov/vuln/detail/CVE-2026-24128