XSS in Mozilla Firefox

CVE-2019-17003

Scanning a QR code that contained a javascript: URL would have resulted in the Javascript being executed.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (33.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-17003?
CVE-2019-17003 is a medium-severity vulnerability in Mozilla Firefox, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-02-16.
How severe is CVE-2019-17003?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2019-17003 known to be exploited?
40 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.