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CVE-2018-6150

21
FAUCET Score

CVE-2018-6150 describes an incorrect handling of Cross-Origin Resource Sharing (CORS) within the ServiceWorker component of Google Chrome versions prior to 66.0.3359.117. This flaw allowed a remote attacker to leak sensitive cross-origin data through a specially crafted HTML page. Rated as MEDIUM severity with a CVSS score of 6.5, the vulnerability requires user interaction (UI:R) but has low attack complexity (AC:L) and could lead to high confidentiality impact (C:H). There is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB, though it has received some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 66.0.3359.117CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.87%
Probability of exploitation in next 30 days
EPSS Percentile
55.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0087 is in the 65th percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: chromium-browser-0:68.0.3440.75-1.el6_10
View patch

Vendor Advisories (1)

redhatCVE-2018-6150Moderate

chromium-browser: Cross origin information disclosure in Service Workers

Jul 24, 2018

References

chromereleases.googleblog.com / 2018/04/stable-channel-update-for-desktop.html
crbug.com / 812667