CVE-2017-8700
ASP.NET Core 1.0, 1.1, and 2.0 allow an attacker to bypass Cross-origin Resource Sharing (CORS) configurations and retrieve normally…
- Published
- Updated
- Reserved
- Assigned by
- microsoft
Description
ASP.NET Core 1.0, 1.1, and 2.0 allow an attacker to bypass Cross-origin Resource Sharing (CORS) configurations and retrieve normally restricted content from a web application, aka "ASP.NET Core Information Disclosure Vulnerability".
Timeline
ID reserved
By microsoft
- 7 months later
· 7 months later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 10.4% · top 4.2% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- Information Disclosure
Affected products
Microsoft Corporation · ASP.NET Core
- affected ASP.NET Core 1.0, 1.1, and 2.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- NuGetMicrosoft.AspNetCore.Mvc.CoreGHSA-3rp6-rjw4-cq39 (opens in a new tab)
- NuGetMicrosoft.AspNetCore.Mvc.CorsGHSA-3rp6-rjw4-cq39 (opens in a new tab)
References (3)
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8700 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1039793 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 101712 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-3rp6-rjw4-cq39 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-8700)Record last updated .