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CVE-2019-19916

20
FAUCET Score

CVE-2019-19916 describes a Content Security Policy (CSP) bypass vulnerability in Midori Browser 0.5.11 on Windows 10. The browser fails to correctly apply CSP to all parts of multipart content, specifically when using the multipart/x-mixed-replace MIME type, potentially allowing cross-site scripting (XSS) and other attacks. This medium-severity vulnerability has a CVSS score of 6.1, indicating a network-based attack requiring user interaction, with potential for low impact on confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.5.11CPE matchmatch criteria
cpe:2.3:a:midori-browser:midori:0.5.11:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.57%
Probability of exploitation in next 30 days
EPSS Percentile
72.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0157 is in the 85th percentile among its peer group of 26,209 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blog.mozilla.org / security/2016/08/26/mitigating-mime-confusion-attacks-in-firefox
Third Party Advisory
github.com / V1n1v131r4/MIME-Confusion-Attack-on-Midori-Browser/blob/master/README.md
ExploitThird Party Advisory
portswigger.net / research/bypassing-csp-using-polyglot-jpegs
ExploitThird Party Advisory