What is CVE-2019-9808?

CVE-2019-9808 is a medium-severity vulnerability in Mozilla Firefox, classified under Origin Validation Error. CVSS score: 5.3/10. Published 2019-04-26.

How severe is CVE-2019-9808?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Mozilla Firefox

CVE-2019-9808

If WebRTC permission is requested from documents with data: or blob: URLs, the permission notifications do not properly display the originating domain. The notification states "Unknown origin" as the requestee, leading to user confusion about which site is asking for this permission. This vulnerability affects Firefox < 66.

EPSS: 0.004 (32.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Mozilla Firefox — versions unspecified

Weakness classification (CWE)

CWE-346 — Origin Validation Error

References

security@mozilla.org (x_refsource_MISC, Vendor Advisory)
security@mozilla.org (Permissions Required, x_refsource_MISC, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2019-9808?: CVE-2019-9808 is a medium-severity vulnerability in Mozilla Firefox, classified under Origin Validation Error. CVSS score: 5.3/10. Published 2019-04-26.
How severe is CVE-2019-9808?: Medium severity. CVSS v3 base score is 5.3 out of 10.