Vulnerability in Mozilla Firefox

CVE-2019-11742

A same-origin policy violation occurs allowing the theft of cross-origin images through a combination of SVG filters and a &lt;canvas&gt; element due to an error in how same-origin policy is applied to cached image content. The resulting same-origin policy violation could allow for data theft. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.

EPSS: 0.017 (74.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2019-11742?
CVE-2019-11742 is a medium-severity vulnerability in Mozilla Firefox, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 6.5/10. Published 2019-09-27.
How severe is CVE-2019-11742?
Medium severity. CVSS v3 base score is 6.5 out of 10.