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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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  • Some scan queue keep "waiting to cancel" status, even restart Burp Pro

    Some scan queue keep "waiting to cancel" status, even restart Burp Pro: After I try to cancel some scan tasks in queue, there remains 20+ tasks in "waiting to cancel" status, and it will occupy scan threads, but those tasks are not changing into scan or cancel, restart BurpPro didn't fix the issue. I want to know how to remove (cancel) those "zombie" tasks. ...

    2 Agent Answers    1 Community Answer
    Aug 07, 2018 11:39PM UTC
  • Copying fails after NULL character

    Hi, This is the first time I noticed it, but when I have a Repeater request with file upload, and the file contains NULL characters, and I want to copy the whole request, it fails on the first NULL character. Is there a possibility of fixing it? Especially for other tools, it would be useful to have the ability to copy the whole request. I know I can save it to file, which works fine so I can get...

    1 Agent Answer    0 Community Answer
    Aug 01, 2018 09:15AM UTC
  • a bug triggered when using a IMessageEditorTab related Extension

    HI Team, I wrote a burp Extension here(, I found a bug when I use it. the purpose of this extension is to convert Unicode to Chinese. I don't want to change the original response , just show in the "U2C" tab. even if, I change the return value of getMessage() method to the origin content; and return value of isModified() method to false. (try...

    2 Agent Answers    1 Community Answer
    Jul 31, 2018 08:12AM UTC
  • Blank Raw (Empty)

    My Config ---------------------------- BurpSuite v1.7.35 - Community Edition Java 8 I'm using firefox and I tested with others navigators like chrome... My local access proxy ip is My Proxy is configurated well. In navigator to accept all protocols with socket 5 The config is right ----------------------------- The problem is When I try to intercept something,...

    1 Agent Answer    1 Community Answer
    Jul 29, 2018 01:52AM UTC
  • Unable to see the contents of request and response

    I am trying to capture the requests to a website in Burp. The request and response do get captured but I am not able to see the contents of the request even though Burp is capturing them both. The intercept is working fine as I can see the text being highlighted when I select the contents in the request and response window. To verify that, I copy the selected text and paste it to a text editor whe...

    2 Agent Answers    2 Community Answers
    Jul 26, 2018 09:30AM UTC
  • Burp report Analysis

    Hi All, We run BURP scans regularly and have to analyse a lot of false positive due to various payloads included in the burp tool. We need a way to identify the false positive which we have analysed earlier in the new report we generate. For example we have ran the tool on 30th Jun 2018 and have got the report generated and it pointed some 2000 issues which turned out to be false positive, now w...

    1 Agent Answer    0 Community Answer
    Jul 24, 2018 12:53PM UTC
  • URLs not showing up in Target SiteMap

    I am able to capture the requests via proxy, send it to Repeater and get a successful response too. But these requests are not showing up in the Target tab. May I know how do I address this?

    5 Agent Answers    6 Community Answers
    Jul 23, 2018 07:53AM UTC
  • Extender Tab "Select File ..." button does NOT open File Explorer on Windows

    I have burp suite professional installed on a windows 10 machine and when I go to the extender tab and the go to the options menu and try to select a jython jar file nothing happens when clicking the "Select file ..." button. This is true for all of the "Select file ..." buttons in the options menu.

    1 Agent Answer    0 Community Answer
    Jul 20, 2018 07:40PM UTC
  • Random "out-of-band resouce load" nofifications

    Not sure if this is a bug, but its the best fitting topic. I am running BURP scans using the Custom Parameter Handler extentions to handle bearer token authentication. Now whe i scan mys site, I get random "out-of-band resource load" results and also "External service interaction (DNS and HTTP). Sometimes these popup, sometimes they don't. I have tried to reproduce the rep...

    1 Agent Answer    0 Community Answer
    Jul 20, 2018 12:11PM UTC
  • Blank raw response window & raw request window

    Hello, After updating to burpsuite community v1.7.35, I can't get content of both request & response. The headers are displayed, but both "Raw" and "HTML" are blank in the request & response windows. The render tab is blank too, although the request is executed successfully in the browser.

    5 Agent Answers    18 Community Answers
    Jul 19, 2018 09:40PM UTC