Vulnerability in Mozilla Firefox
CVE-2020-12415
When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed a manifest to be served from a subdirectory. This could cause the appcache to be used to service requests for the top level directory. This vulnerability affects Firefox < 78.
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: 0.013 (68.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: +0.000
Affected products
- Mozilla Firefox — versions unspecified
- openSUSE Leap — versions 15.1, 15.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.mozilla.org/security/advisories/mfsa2020-24/ (Vendor Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Permissions Required, Issue Tracking, Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html (vendor-advisory, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202007-10 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-12415?
- CVE-2020-12415 is a medium-severity vulnerability in Mozilla Firefox, classified under Incorrect Default Permissions. CVSS score: 6.5/10. Published 2020-07-09.
- How severe is CVE-2020-12415?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2020-12415 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.