Vulnerability in Mozilla Firefox
CVE-2019-11765
A compromised content process could send a message to the parent process that would cause the 'Click to Play' permission prompt to be shown. However, due to lack of validation from the parent process, if the user accepted the permission request an attacker-controlled permission would be granted rather than the 'Click to Play' permission. This vulnerability affects Firefox < 70.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.008 (56.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Mozilla Firefox — versions before 70
Weakness classification (CWE)
References
- www.mozilla.org/security/advisories/mfsa2019-34/ (Vendor Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Permissions Required)
Frequently asked questions
- What is CVE-2019-11765?
- CVE-2019-11765 is a medium-severity vulnerability in Mozilla Firefox, classified under Incorrect Default Permissions. CVSS score: 6.5/10. Published 2020-01-08.
- How severe is CVE-2019-11765?
- Medium severity. CVSS v3 base score is 6.5 out of 10.