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CVE-2018-14732

26
FAUCET Score

CVE-2018-14732 describes a vulnerability in webpack-dev-server versions prior to 3.1.6, specifically within its lib/Server.js component. This flaw allows attackers to steal a developer's code due to the WebSocket server, used for Hot Module Replacement (HMR), failing to validate the origin of incoming requests. Rated with a CVSS score of 7.5 (HIGH), this vulnerability is easily exploitable over the network without requiring user interaction, leading to a high impact on confidentiality. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.1.6CPE matchmatch criteria
cpe:2.3:a:webpack.js:webpack-dev-server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.53%
Probability of exploitation in next 30 days
EPSS Percentile
83.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0253 is in the 70th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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 (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: webpack-dev-serverFixed in: 3.1.11

Vendor Advisories (1)

npmGHSA-cf66-xwfp-gvc4high

Missing Origin Validation in webpack-dev-server

Jan 4, 2019

References

blog.cal1.cn / post/Sniffing%20Codes%20in%20Hot%20Module%20Reloading%20Messages
ExploitThird Party Advisory
github.com / webpack/webpack-dev-server/commit/f18e5adf123221a1015be63e1ca2491ca45b8d10
PatchThird Party Advisory
github.com / webpack/webpack-dev-server/issues/1445
ExploitThird Party Advisory