DOM data manipulation (DOM-based)
Summary: DOM data manipulation occurs when a client-side script writes controllable data, such as data from the URL, to a field within the DOM that is used in the visible UI or client-side application logic. An attacker can construct a URL that, when visited by another user, modifies the appearance or behavior of the client-side UI, enabling virtual defacement or inducing the user to perform unintended actions.
What's compelling: A crafted link is enough for an attacker to alter what your application shows a logged-in user or steer them into unintended actions, and PortSwigger notes that static analysis alone can flag issues that are not actually exploitable, so unverified scanner findings need code and execution-path review.
Read the original at PortSwigger Research ↗
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- Vulnerabilities & Patching
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