CVE-2018-8547
A cross-site-scripting (XSS) vulnerability exists when an open source customization for Microsoft Active Directory Federation Services (AD…
- 5.4MediumCVSS base score
- 1.6%Exploitation in 30 daysEPSS · top 24% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A cross-site-scripting (XSS) vulnerability exists when an open source customization for Microsoft Active Directory Federation Services (AD FS) does not properly sanitize a specially crafted web request to an affected AD FS server, aka "Active Directory Federation Services XSS Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2019, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers.
Timeline
ID reserved
By microsoft
- 8 months later
· 8 months later
Published
- 6 years later
· 6 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 | Medium5.4 | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 1.6% · top 24% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.
Affected products
Microsoft · Windows Server 2012 R2
- affected (Server Core installation)
- affected Windows RT 8.1
Microsoft · Windows Server 2019
- affected (Server Core installation)
Microsoft · Windows Server 2016
- affected (Server Core installation)
- affected 32-bit systems
- affected x64-based systems
- affected Version 1607 for 32-bit Systems
- affected Version 1607 for x64-based Systems
- affected Version 1709 for 32-bit Systems
- affected Version 1709 for x64-based Systems
- affected Version 1803 for 32-bit Systems
- affected Version 1803 for ARM64-based Systems
- affected Version 1803 for x64-based Systems
- affected Version 1809 for 32-bit Systems
- affected Version 1809 for ARM64-based Systems
- affected Version 1809 for x64-based Systems
Microsoft · Windows 10 Servers
- affected version 1709 (Server Core Installation)
- affected version 1803 (Server Core Installation)
References
References2
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8547 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 105801 (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)
- EUVD EUVD-2018-20168 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (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-2018-8547)Record last updated .