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Burp Extender

Burp Extender lets you extend the functionality of Burp Suite in numerous ways.

Extensions can be written in Java, Python or Ruby.

API documentation Writing your first Burp Suite extension
Sample extensions View community discussions about Extensibility

Bug Reports

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  • Incorrect statement regarding HTML5 cross-origin resource sharing

    Hello, In burp, the issue regarding "Access-Control-Allow-Origin: *" is described as follows: Issue detail The application implements an HTML5 cross-origin resource sharing (CORS) policy for this request which allows access from any domain. Allowing access from all domains means that any domain can perform two-way interaction with the application via this request. Unless the resp...

    2 Agent Answers    1 Community Answer
    Sep 14, 2016 12:32PM UTC
  • buggy double click auto selection in response

    bellow is response: HTTP/1.1 200 OK Server: openresty Date: Wed, 14 Sep 2016 04:28:37 GMT Content-Type: text/html Connection: keep-alive Vary: Accept-Encoding X-Powered-By: PHP/5.4.11 Content-Length: 3600 4c34f891fdb738cacf2f58e7f05d78c20a38cf70d9f55d888c2c1e2ebb580020b81cdfd7651b613f5f2378af5d1e46ddcfec66790623bba7544b66412bd00555c59734e344ef736e04e22d84dfffed7b4d5163367e291606e685f8...

    2 Agent Answers    0 Community Answer
    Sep 14, 2016 05:06AM UTC
  • Intruder: Make it easier to retrieve long payloads from attack results

    If a payload is quite long (when using, for example, the Bit Flipper payload on a long session token), it's truncated in the displayed results grid when the column is expanded. This isn't great, but it's livable if the whole original value could be retrieved by another method. Unfortunately there doesn't appear to be a way to do that. The Save Results Table function also tru...

    1 Agent Answer    0 Community Answer
    Sep 13, 2016 04:53PM UTC
  • Unable to Repeat a Saved Attack

    I am using Burp Suite Pro 1.7.06 with Java version 1.8.0_102 on Windows 10. I am able to open saved attacks via the "Intruder" > "Open Saved Attack" menu, but when I then select "Attack" > "Repeat" in the resulting pop-up nothing happens. I have checked the "Alerts" tab and there are no messages generated.

    1 Agent Answer    0 Community Answer
    Sep 08, 2016 04:07PM UTC
  • Burp Scanner does not recognize Open Redirect

    Burp Scanner does not recognize Open Redirect: When checking the raw scanner requests/responses with Logger++ I spotted the following Open Redirect situation that was not recognized/reported by the scanner: POST-parameter xxx can be used to set redirect target Website replies with "HTTP/1.1 302 Found" with user-controlled Location header with value of parameter xxx The followin...

    2 Agent Answers    2 Community Answers
    Sep 08, 2016 11:33AM UTC
  • Burp fails loading CSS, responds extremely sluggish, CPU up to 100%

    Hi, I am using Burp on a Mac Book Pro (End 2013, 16 GB Ram) latest version (1.7.05). Burp has come to a point, that I can hardly use it for my day to day work: When doing an application test with Burp and Firefox (most recent, 48.0.2 at this time), the connection via burp is quite slow (and gets slower over time), and the browser fails to display CSS scripts. Also, every now and then, the CPU of ...

    1 Agent Answer    1 Community Answer
    Sep 07, 2016 09:47AM UTC
  • Match-Replace Doesn't Work With External js Files

    Hi, I'm not sure that this phenomenon is a bug or is an intentional "feature" and I've searched support and the community, but... I set up a series of rather heavy-handed filters, using "Match and Replace" - 4 to be exact - matching a string literal ("facebook" :) ). Items: Request header, Request body, Response header, Response body. Everything wo...

    1 Agent Answer    0 Community Answer
    Sep 04, 2016 01:43AM UTC
  • Burp/Repeater decodes payload incorrectly

    I am trying to send different payloads with Burp repeater, but found some characters to result in unwanted behavior of the repeater functionality. Details: I am sending the following character as a repeater payload (does not matter weather URL or Body payload. Make sure you are in the "Params" tab of the repeater: “ Please note that this is _not_ a %22 char. Burp sends this out a...

    2 Agent Answers    2 Community Answers
    Sep 01, 2016 12:32PM UTC
  • TLS Certificate Validity Period That Is Too Long

    Hi there. Using the latest versions of Chrome for Android, I keep getting the error: "validity period that is too long". For what I could determine, Chrome for Android will hard fail any certificate prior to 1st April 2015 that has more than 39 months of validity period. Burp Suite should generate the certificates respecting this condition.

    4 Agent Answers    5 Community Answers
    Aug 30, 2016 02:11PM UTC
  • GUI display issue

    Hi, I cant see some of burp text on it's menus, it happens when I change screen or click on something. I'm on VMWare 11 windows 10 java 1.7.0_80-b15. picture of the problem: Thanks.

    3 Agent Answers    2 Community Answers
    Aug 24, 2016 06:51AM UTC