CVE-2015-4498
The add-on installation feature in Mozilla Firefox before 40.0.3 and Firefox ESR 38.x before 38.2.1 allows remote attackers to bypass an intended user-confirmation requirement by constructing a crafted data: URL and triggering navigation to an arbitrary…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.68%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The add-on installation feature in Mozilla Firefox before 40.0.3 and Firefox ESR 38.x before 38.2.1 allows remote attackers to bypass an intended user-confirmation requirement by constructing a crafted data: URL and triggering navigation to an arbitrary http: or https: URL at a certain early point in the installation process.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 2.68% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-254
- Affected
- mozilla/firefox
- Source
- security@mozilla.org
References
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00013.html
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html
- http://lists.opensuse.org/opensuse-updates/2015-09/msg00000.html
- http://rhn.redhat.com/errata/RHSA-2015-1693.html
- http://www.debian.org/security/2015/dsa-3345
- http://www.mozilla.org/security/announce/2015/mfsa2015-95.htmlVendor Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/76505
- http://www.securitytracker.com/id/1033396
- http://www.ubuntu.com/usn/USN-2723-1
- https://bugzilla.mozilla.org/show_bug.cgi?id=1042699
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00013.html
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html
- http://lists.opensuse.org/opensuse-updates/2015-09/msg00000.html
- http://rhn.redhat.com/errata/RHSA-2015-1693.html
- http://www.debian.org/security/2015/dsa-3345
- http://www.mozilla.org/security/announce/2015/mfsa2015-95.htmlVendor Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/76505
- http://www.securitytracker.com/id/1033396
- http://www.ubuntu.com/usn/USN-2723-1
- https://bugzilla.mozilla.org/show_bug.cgi?id=1042699
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.