Many times, we have encountered instances where our target webpage utilized an outdated version of a framework – in my case, Bootstrap 3.3.7. This particular version is susceptible to Cross-Site Scripting (XSS) and has corresponding Common Vulnerabilities and Exposures (CVE). While I had come across this information multiple times before, I never delved deep into identifying the specific vulnerability affecting the web application. Understanding the intricacies of exploitation seemed challenging, and I struggled to comprehend the methods involved.
In my recent exploration, I decided to investigate further and stumbled upon the following page: https://lnkd.in/dsyixb-Z. The information provided indicated that certain properties, such as data-template, data-content, and data-title, among others, were vulnerable. Despite this revelation, I still grappled with the practical aspect of locating these properties and injecting a payload.
During my quest, someone suggested, "You can manipulate it however you want. The vulnerability, while unlikely in most applications, arises when any data specified by an attacker on the right-hand side of '=' is not filtered by the software."
This insight prompted a realization: when encountering a CVE that affects your target domain, delve deeper. Learn about the specific vulnerability, understand the functionality of the implicated components, and scrutinize JavaScript files associated with the framework. It became evident that blindly reporting a CVE without comprehending the context might not yield effective results. In my case, I couldn't exploit an XSS vulnerability simply because my input wasn't reflecting between the specified parameters.
Special Thanks to Snyk
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