CVE-2025-10909

CVE-2025-10909: Multiples Stored Cross-Site Scripting (XSS) Injection via SVG File Upload Bypass

CVE Publication: https://www.cve.org/CVERecord?id=CVE-2025-10909

Summary

Multiples Stored Cross-Site Scripting (XSS) via SVG File Upload Bypass vulnerability was identified in the /admin endpoint of the NovoSGA application. This vulnerability allows attackers to upload malicious files into the logoNavbar and logoLogin parameters. The injected files are stored on the server and executed automatically whenever the affected page is accessed by users, posing a significant security risk.

Details

Vulnerable Endpoint: /admin

Parameters: logoNavbar, logoLogin

The application fails to properly validate and sanitize user inputs in the logoNavbar and logoLogin parameters. This lack of validation allows attackers to inject malicious scripts, which are then stored on the server. Whenever the affected page is accessed, the malicious payload is executed in the victim's browser, potentially compromising the user's data and system.

PoC

Save the payload in the xss.svg file.

Payload:

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<svg xmlns=""http://www.w3.org/2000/svg"" fill=""none"">
  <script>
    alert(""This is an XSS-POC from CVEHUNTERS"");
  </script>
</svg>

Impact

Stealing session cookies: Attackers can use stolen session cookies to hijack a user's session and perform actions on their behalf.
Downloading malware: Attackers can trick users into downloading and installing malware on their computers.
Hijacking browsers: Attackers can hijack a user's browser or deliver browser-based exploits.
Stealing credentials: Attackers can steal a user's credentials.
Obtaining sensitive information: Attackers can obtain sensitive information stored in a user's account or in their browser.
Defacing websites: Attackers can deface a website by altering its content.
Misdirecting users: Attackers can change the instructions given to users who visit the target website, misdirecting their behavior.
Damaging a business's reputation: Attackers can damage a business's image or spread misinformation by defacing a corporate website.

Reference

https://github.com/KarinaGante/KG-Sec/blob/main/CVEs/NovoSGA/CVE-2025-10909.md

Finder

Karina Gante

By: CVE-Hunters