An attacker crafts malicious web links and distributes them (via web pages, email, etc.), typically in a targeted manner, hoping to induce users to click on the link and execute the malicious action against some third-party application. If successful, the action embedded in the malicious link will be processed and accepted by the targeted application with the users' privilege level. This type of attack leverages the persistence and implicit trust placed in user session cookies by many web applications today. In such an architecture, once the user authenticates to an application and a session cookie is created on the user's system, all following transactions for that session are authenticated using that cookie including potential actions initiated by an attacker and simply "riding" the existing session cookie.

Related CWE definitions

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.
The product does not maintain or incorrectly maintains control over a resource throughout its lifetime of creation, use, and release.
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
The SameSite attribute for sensitive cookies is not set, or an insecure value is used.
Please note that CAPEC definitions are provided as a quick reference only. Visit for a complete list of CAPEC entries and more information.
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