Sails is an MVC style framework for building realtime web applications. Version 0.12.7 and lower have an issue with the CORS configuration where the value of the origin header is reflected as the value for the Access-Control-Allow-Origin header. This would allow an attacker to make AJAX requests to vulnerable hosts through cross site scripting or a malicious HTML Document, effectively bypassing the Same Origin Policy. Note that this is only an issue when `allRoutes` is set to `true` and `origin` is set to `*` or left commented out in the sails CORS config file. The problem can be compounded when the cors `credentials` setting is not provided. At that point authenticated cross domain requests are possible.
Published 2018-05-31 20:29:02
Updated 2019-10-09 23:16:46
Source HackerOne
View at NVD,   CVE.org
Vulnerability category: Cross site scripting (XSS)BypassGain privilege

Exploit prediction scoring system (EPSS) score for CVE-2016-10549

0.07%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 30 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-10549

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
2.1
LOW AV:N/AC:H/Au:S/C:N/I:P/A:N
3.9
2.9
NIST
4.4
MEDIUM CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N
1.3
2.7
NIST

CWE ids for CVE-2016-10549

References for CVE-2016-10549

Products affected by CVE-2016-10549

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