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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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  • 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
  • Recovery of Burp project file

    Hi, I am using Burp on Windows7. I came across an issue where active scan was in progress and the OS went down. I saved the project once when half of the scan was completed. After restart the machine, the Burp is not able to open the project file even with the data which was saved earlier. The burp tried to recover the file and it asked to give a new file name. Even with this option, it generated...

    2 Agent Answers    2 Community Answers
    Jul 19, 2018 10:55AM UTC
  • burp suite won't start at all with java 10

    java version "10.0.1" 2018-04-17 Java(TM) SE Runtime Environment 18.3 (build 10.0.1+10) Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10.0.1+10, mixed mode) ///////////////// WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by burp.u4g (file:/opt/burpsuite-community-v1.7.35/burpsuite_community_v1.7.35.jar) to field javax.crypto.JceS...

    2 Agent Answers    1 Community Answer
    Jul 17, 2018 08:14PM UTC
  • Record macro not starting

    When i try to record a macro in macro editor, the macro record button is released and not recording macro. I am using JRE 10 ,Burp Suite Community edition 1.7. 35, kali linux.

    2 Agent Answers    1 Community Answer
    Jul 16, 2018 05:06AM UTC
  • Bodyless response delayed ~10sec before forwarding the header

    Whilst conducting some testing I noticed that for a bodyless response like a 302 (that as per spec does not have a content-length/chunked header) the proxy waits ~10sec before forwarding the header, and when it is forwarded Burp has also added a content-length header with a zero value.

    2 Agent Answers    2 Community Answers
    Jul 12, 2018 10:36AM UTC
  • Target Scope (Basic Config) Exclude From Scope Ignored During Active Scan

    Tested on Burp v1.7.32 (cannot update right now from this testing machine) How to Reproduce: 1) Visit a website e.g. 2) Add the root in scope. "Include In Scope" will show [X] 3) On the Login Page, click Exclude. "Exclude from Scope" will show [X] 4) Run Active Scan. is included in the...

    2 Agent Answers    2 Community Answers
    Jul 09, 2018 12:10PM UTC
  • Burp Scanner stuck at 0%

    Hi, I am having issues with the burp active scanner. I'm not sure if it is due to the application or not. Here are my symptoms, I start a scan, and the # of requests will build up. To around 20-30 requests. Then all of a sudden, it stops there. The status of completion stays at 0%. I have tried other hosts, and the scans still have the same behavior. I have tried turning my VPN off and on,...

    2 Agent Answers    1 Community Answer
    Jul 04, 2018 07:17PM UTC
  • add-a-request suppress all my macros

    Hello, When using add-a-request all my macros are removed. This is using Burp 1.7.34 (we downgraded because of the macro issue on 1.7.35), there are no stdout or stderr of the add-a-request extension. Running on Windows server 2012. Let me know if you need other details to reproduce. Thanks,

    2 Agent Answers    1 Community Answer
    Jul 04, 2018 09:16AM UTC
  • Macro Recorder Window Not Working with v1.7.35

    In the latest 1.7.35 version, the macro (Project Options > Sessions > Macros) is not working properly. When creating, or editing (and clicking the Record Macro button) a macro, the macro recorder window does not show up and produce the following error in the terminal burp was started from: java.lang.ClassCastException: cannot be cast to javax.swing.JFrame Full error at https://...

    5 Agent Answers    7 Community Answers
    Jul 02, 2018 02:10PM UTC
  • Burp Suite Pro ignoring BurpSuitePro.vmoptions

    Hi Burp experts. Just recently I noticed that Burp is ignoring certain (or maybe all) JVM parameters inside the BurpSuitePro.vmoptions file. I'm usually working in a proxied environment. In order to download/install extensions and software updates for Burp, I added "-Dhttps.proxyHost" (an proxyPort, ofc.) parameters to the above mentioned file. In the past, this worked flawles...

    1 Agent Answer    1 Community Answer
    Jun 28, 2018 08:27PM UTC