During some happy hunting, I found two XSS vulnerabilities in the FooGallery WordPress plugin (version 2.4.14), which made 50k instances vulnerable on the day of discovery! These can allow attackers to execute malicious code and gain unauthorized access to administrative functionalities. Below is a detailed explanation of these vulnerabilities and how they can be exploited.
A highly effective attack method combines Reflected Cross-Site Scripting (XSS) and authorization vulnerabilities. This attack lets hackers gain unauthorized administrative access. It requires social engineering to trick an administrator into running malicious JavaScript code, which then changes user permissions, potentially taking over accounts.
In many situations, minor vulnerabilities might seem like small fish in the vast ocean of cybersecurity threats. They're often marked as low severity and thus, overlooked by developers who assume that the conditions for their exploitation are too complicated to be met.
In many situations, minor vulnerabilities might seem like small fish in the vast ocean of cybersecurity threats. They're often marked as low severity and thus, overlooked by developers who assume that the conditions for their exploitation are too complicated to be met. However, in this article, we're going to challenge that assumption and show you how chaining several 'minor' vulnerabilities can lead to a Mass Account Takeover.
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