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CVE-2015-4476

14
FAUCET Score

CVE-2015-4476 describes a user-assisted remote spoofing vulnerability in Mozilla Firefox before version 41.0 on Android, affecting both Google and Mozilla Android and Firefox products. An attacker could leverage a lack of navigation after pasting a URL with a nonstandard scheme to spoof address-bar attributes, such as SSL indicators. This vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and requiring user interaction, with a potential impact of partial integrity loss. There is no evidence of active exploitation, nor are there publicly available exploit codes or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 40.0.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.84%
Probability of exploitation in next 30 days
EPSS Percentile
76.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0184 is in the 57th percentile among its peer group of 19,956 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2015-4476Moderate

Mozilla: Site attribute spoofing on Android by pasting URL with unknown scheme (MFSA 2015-99)

Sep 22, 2015

References

lists.opensuse.org / opensuse-security-announce/2015-10/msg00000.html
bugzilla.mozilla.org / show_bug.cgi
mozilla.org / security/announce/2015/mfsa2015-99.html
Vendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2016-2952098.html
securityfocus.com / bid/76815
securitytracker.com / id/1033640