Open redirect

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This is a Vulnerability. To view all vulnerabilities, please see the Vulnerability Category page.

Last revision (mm/dd/yy): 09/27/2008

Vulnerabilities Table of Contents

ASDR Table of Contents


A vulnerability is a weakness in an application (frequently a broken or missing control) that enables an attack to succeed. Be sure you don't put [attacks] or [controls] in this category.

  1. Start with a one-sentence description of the vulnerability
  2. What is the problem that creates the vulnerability?
  3. What are the attacks that target this vulnerability?
  4. What are the technical impacts of this vulnerability?

Risk Factors

  • Talk about the factors that make this vulnerability likely or unlikely to actually happen
  • Discuss the technical impact of a successful exploit of this vulnerability
  • Consider the likely [business impacts] of a successful attack


Short example name

A short example description, small picture, or sample code with links

Short example name

A short example description, small picture, or sample code with links

Related Attacks

Related Vulnerabilities

Related Controls

Related Technical Impacts


Note: A reference to related CWE or CAPEC article should be added when exists. Eg:


An open redirect is an application that takes a parameter and redirects a user to the parameter value without any validation. This vulnerability is used in phishing attacks to get users to visit malicious sites without realizing it.

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Exposure period


All web platforms affected

Required resources


Likelihood of exploit

Avoidance and mitigation

To avoid the open redirect vulnerability parameters of the application script/program must be validated before sending 302 HTTP code (redirect) to the client browser.

The server must have a relation of the authorized redirections (i.e. in a database)



The phishing use can be more complex, using complex encoding:

Real redirect:

Facked link:

Related problems