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.
CVE-2016-10549
This medium-severity CVE scores 4.4 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 51% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.4
- EG Score
- 4.4(medium)
- EPSS
- 46.6%
- KEV
- Not listed
Published
May 31, 2018
Last Modified
November 21, 2024
References (6)
- support@hackeronehttp://sailsjs.org/documentation/concepts/security/cors
- support@hackeronehttp://sailsjs.org/documentation/reference/configuration/sails-config-cors
- support@hackeronehttps://nodesecurity.io/advisories/148
- af854a3a-2127-422b-91ae-364da2661108http://sailsjs.org/documentation/concepts/security/cors
- af854a3a-2127-422b-91ae-364da2661108http://sailsjs.org/documentation/reference/configuration/sails-config-cors
- af854a3a-2127-422b-91ae-364da2661108https://nodesecurity.io/advisories/148
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| sails | — | 0.12.7 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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- 2026-05-24 09:21 UTCOSV refresh
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Frequently asked(5)
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