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CVE-2018-12382

20
FAUCET Score

CVE-2018-12382 describes a URL spoofing vulnerability in Firefox for Android versions prior to 62. An attacker could use a javascript: URI and JavaScript to manipulate the address bar, inserting text that pushes the legitimate domain out of view, potentially confusing users into believing they are on a different site. This medium-severity vulnerability (CVSS 5.3) has a low impact on integrity (I:L) and requires no user interaction (UI:N). There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
62.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:62.0:*:*:*:*:*:*:*
< 62CPE match
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.68%
Probability of exploitation in next 30 days
EPSS Percentile
74.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0168 is in the 60th percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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-2018-12382Low

Mozilla: Addressbar spoofing with javascript URI on Firefox for Android

Sep 5, 2018

References

bugzilla.mozilla.org / show_bug.cgi
ExploitIssue TrackingVendor Advisory
mozilla.org / security/advisories/mfsa2018-20
Vendor Advisory
securityfocus.com / bid/105276
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041610
Third Party AdvisoryVDB Entry