CVE-2015-4498

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-08-29 · updated 2026-06-17
Weakness: CWE-254

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.

Affected products

Mozilla Firefox: through 40.0.2; 38.0, 38.0.1, 38.0.5, 38.1.0, 38.2.0

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.html
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

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