CVE-2021-40968 Scanner

Spotweb is a web-based content aggregation system, commonly used as a localized alternative to Usenet indexing websites. It allows users to browse, search, and download content posted on Usenet groups. Spotweb is designed to be run on a personal web server, offering a self-hosted solution for accessing Usenet content. This platform is widely utilized within the Usenet community for its ability to provide a customizable and private experience for consuming Usenet content. The identified vulnerability in versions up to 1.5.1 exposes users to potential security risks associated with cross-site scripting attacks.

The XSS flaw in Spotweb 1.5.1 and below is triggered during the installation process. Specifically, it occurs in the handling of the 'newpassword2' parameter. By crafting a malicious payload that includes JavaScript code, attackers can inject the code into the generated HTML of the page. When this page is viewed by a user, the injected script executes within the context of their browser session. This vulnerability highlights the importance of validating and encoding user inputs to prevent the injection of unintended code into web pages.

The exploitation of CVE-2021-40968 can lead to unauthorized access to user sessions, personal data theft, and manipulation of web content presented to users. Attackers could leverage this vulnerability to perform actions on behalf of users, compromise user privacy, and potentially gain unauthorized access to sensitive information stored within the Spotweb application.

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References

• https://github.com/spotweb/spotweb/
• https://github.com/spotweb/spotweb/issues/711
• https://nvd.nist.gov/vuln/detail/CVE-2021-40968
• https://github.com/spotweb/spotweb