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getSelectionBounds() function return wrong indexes when message contains Chinese

bit4woo | Last updated: Apr 17, 2020 02:15PM UTC

I try to get selected content with function "getSelectionBounds()". but I found it return wrong indexes when message contains Chinese, and Chinese is in front of the selected. here is the code of test: source = message.getResponse(); int[] selectedIndex = invocation.getSelectionBounds(); int selectedLength = selectedIndex[1]-selectedIndex[0]; byte[] selectedBytes = new byte[selectedLength]; System.arraycopy(source, selectedIndex[0], selectedBytes, 0, selectedLength); String selectedUrl = new String(selectedBytes); stdout.println("selected content"); stdout.println(selectedUrl); you can test with this URL https://intl.sf-express.com/ in the response, I want to select: https://www.sf-express.com/.galleries/favicon.ico but got: l="shortcut icon" href="https://www.sf-express.co it seems that the indexes move front.

bit4woo | Last updated: Apr 17, 2020 02:26PM UTC

some screen shot of the bug, you can download it for more information https://send.firefox.com/download/e465b1d152fcf8c5/#qMbn4RiqhdT8P6-A2nCV7w

Hannah, PortSwigger Agent | Last updated: Apr 17, 2020 03:16PM UTC

Do you see the same issue when there are not Chinese (or other multibyte characters) characters present?

Micheal | Last updated: Jun 08, 2023 07:03PM UTC