Vulnerability in Mozilla Firefox
CVE-2019-9817
Images from a different domain can be read using a canvas object in some circumstances. This could be used to steal image data from a different site in violation of same-origin policy. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.
Published · last modified .
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:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.008 (55.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.0% 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 unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Firefox Esr
- Mozilla Thunderbird — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.mozilla.org/security/advisories/mfsa2019-13/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2019-15/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2019-14/ (Vendor Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Permissions Required)
Frequently asked questions
- What is CVE-2019-9817?
- CVE-2019-9817 is a medium-severity vulnerability in Mozilla Firefox, classified under Origin Validation Error. CVSS score: 5.3/10. Published 2019-07-23.
- How severe is CVE-2019-9817?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2019-9817 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.