Vulnerability Description
In Midori Browser 0.5.11 (on Windows 10), Content Security Policy (CSP) is not applied correctly to all parts of multipart content sent with the multipart/x-mixed-replace MIME type. This could result in script running where CSP should have blocked it, allowing for cross-site scripting (XSS) and other attacks when the product renders the content as HTML. Remediating this would also need to consider the polyglot case, e.g., a file that is a valid GIF image and also valid JavaScript.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Midori-Browser | Midori | 0.5.11 |
| Microsoft | Windows 10 | - |
Related Weaknesses (CWE)
References
- https://blog.mozilla.org/security/2016/08/26/mitigating-mime-confusion-attacks-iThird Party Advisory
- https://github.com/V1n1v131r4/MIME-Confusion-Attack-on-Midori-Browser/blob/masteExploitThird Party Advisory
- https://portswigger.net/research/bypassing-csp-using-polyglot-jpegsExploitThird Party Advisory
- https://blog.mozilla.org/security/2016/08/26/mitigating-mime-confusion-attacks-iThird Party Advisory
- https://github.com/V1n1v131r4/MIME-Confusion-Attack-on-Midori-Browser/blob/masteExploitThird Party Advisory
- https://portswigger.net/research/bypassing-csp-using-polyglot-jpegsExploitThird Party Advisory
FAQ
What is CVE-2019-19916?
CVE-2019-19916 is a vulnerability with a CVSS score of 6.1 (MEDIUM). In Midori Browser 0.5.11 (on Windows 10), Content Security Policy (CSP) is not applied correctly to all parts of multipart content sent with the multipart/x-mixed-replace MIME type. This could result ...
How severe is CVE-2019-19916?
CVE-2019-19916 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-19916?
Check the references section above for vendor advisories and patch information. Affected products include: Midori-Browser Midori, Microsoft Windows 10.