CVE-2016-10549: 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 v...

Description

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.

Metrics

EPSS Probability

0.65%

46.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Sailsjs	Sails	<= 0.12.7

References

http://sailsjs.org/documentation/concepts/security/corsVendor Advisory
http://sailsjs.org/documentation/reference/configuration/sails-config-corsVendor Advisory
https://nodesecurity.io/advisories/148Third Party Advisory
http://sailsjs.org/documentation/concepts/security/corsVendor Advisory
http://sailsjs.org/documentation/reference/configuration/sails-config-corsVendor Advisory
https://nodesecurity.io/advisories/148Third Party Advisory

Timeline

Published: May 31, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-10549?

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.

How severe is CVE-2016-10549?

Severity scoring for CVE-2016-10549 is pending analysis. The EPSS model estimates a 0.65% probability of exploitation in the next 30 days.

How do I fix CVE-2016-10549?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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