PMB Cross-Site Scripting Scanner

PMB is a comprehensive library management software utilized by libraries, educational institutions, and organizations worldwide. It facilitates efficient cataloging, circulation, and public access to library resources, enhancing information management and dissemination. PMB supports seamless integration with existing library databases and provides user-friendly interfaces for librarians. It offers advanced search functionalities and enriches user experience through customizable modules. The software aids in digital archiving, ensuring data remains accessible and secure. With a robust architecture, PMB is designed to adapt to varying organizational needs, promoting knowledge sharing and collaboration.

Cross-Site Scripting (XSS) is a prevalent security vulnerability that allows attackers to inject malicious scripts into web applications. These scripts are then executed in the context of a user's browser, potentially leading to unauthorized actions. XSS can be used to steal cookies, session tokens, or other sensitive information. It occurs when user input is not properly sanitized or validated before being reflected on the webpage. Attackers can exploit this vulnerability to perform phishing attacks or deface web content. Mitigating XSS vulnerabilities involves implementing strong input validation and output encoding practices.

The XSS vulnerability in PMB version 7.4.1 is exploitable via the 'no_search' parameter in requests. An attacker can inject arbitrary JavaScript code into this parameter, which is then executed in the user's browser. The vulnerability arises from insufficient input validation and allows attackers to perform cross-site scripting attacks. The code injection is possible during an advanced search query processed by the application. The vulnerability affects systems running the specified version and utilizing this parameter in search functionalities. Proper validation of user inputs on this endpoint is necessary to prevent exploitation.

When exploited, this XSS vulnerability can result in severe repercussions for users and administrators alike. Malicious actors may execute unauthorized scripts that could steal sensitive user information such as session cookies. This can lead to account takeovers, data theft, or phishing attacks targeting unsuspecting users. Additionally, the injected scripts can manipulate the display of web content, causing misinformation or defacement. The overall security of the application is at risk, potentially leading to further exploitation if unaddressed. Implementing safeguards against XSS is crucial to maintaining the integrity and trust of the software users.

REFERENCES

• https://github.com/jenaye/PMB