An issue was discovered in HMRServer.js in Parcel parcel-bundler. Attackers are able to steal developer's code because the origin of requests is not checked by the WebSocket server, which is used for HMR (Hot Module Replacement). Anyone can receive the HMR message sent by the WebSocket server via a ws://127.0.0.1 connection (with a random TCP port number) from any origin. The random port number can be found by connecting to http://127.0.0.1 and reading the "new WebSocket" line in the source code.
Published 2018-09-21 17:29:05
Updated 2018-11-27 19:01:51
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Information leak

Products affected by CVE-2018-14731

Exploit prediction scoring system (EPSS) score for CVE-2018-14731

0.19%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 56 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-14731

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
MEDIUM AV:N/AC:L/Au:N/C:P/I:N/A:N
10.0
2.9
NIST
7.5
HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.9
3.6
NIST

CWE ids for CVE-2018-14731

References for CVE-2018-14731

Jump to
This web site uses cookies for managing your session, storing preferences, website analytics and additional purposes described in our privacy policy.
By using this web site you are agreeing to CVEdetails.com terms of use!