Microsoft SharePoint Server 2013 Service Pack 1 allows an elevation of privilege vulnerability when it fails to properly sanitize a specially crafted web request to an affected SharePoint server, aka "Microsoft SharePoint XSS Vulnerability".
CVE-2017-8629
MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence
Score 5.4 from GitHub Security Advisory published 2022-05-17. NVD baseline CVSS 5.4; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 2%CVSS: 5.4Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.4
- EG Score
- 5.4(medium)
- EPSS
- 82.0%
- KEV
- Not listed
Published
September 13, 2017
Last Modified
May 13, 2026
References (6)
- secure@microsofthttp://www.securityfocus.com/bid/100725
- secure@microsofthttp://www.securitytracker.com/id/1039329
- secure@microsofthttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8629
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/100725
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1039329
- af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8629
Frequently asked(5)
What is CVE-2017-8629?
CVE-2017-8629 is a medium vulnerability published on September 13, 2017. Microsoft SharePoint Server 2013 Service Pack 1 allows an elevation of privilege vulnerability when it fails to properly sanitize a specially crafted web request to an affected SharePoint server, aka "Microsoft SharePoint XSS Vulnerability".
When was CVE-2017-8629 disclosed?
CVE-2017-8629 was first published in the National Vulnerability Database on September 13, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-8629 actively exploited?
CVE-2017-8629 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 82.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-8629?
CVE-2017-8629 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2017-8629?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-8629, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2017-8629
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