CVE-2021-31950: microsoft microsoft sharepoint enterprise server 2016 Server-Side Request Forgery (SSRF)
CVSS: 7.6v3.1HighModified
Published 08-06-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-31950 is a high (CVSS 7.6) Server-Side Request Forgery (SSRF) vulnerability in microsoft microsoft sharepoint enterprise server 2016. EPSS estimates a 4.56% chance of exploitation in the next 30 days, higher than 91.5% of scored vulnerabilities. 2 public exploits are recorded.
CVSS score
7.6/10
010
High · v3.1 (CVE.org)EPSS score
4.56%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference, exploit-database
Timeline
- 08-06-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Microsoft SharePoint Server Spoofing Vulnerability
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.6Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST7.6HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Medium 5.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:P/A:NSourcesSingle source
EPSS trend
Probability
4.56%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
0.00 pp
From 4.56% on 19-09-2026
19-09-202619-10-2026
EPSS score4.56%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (packetstormsecurity.com)
Maturity: unknown
Microsoft SharePoint Server 16.0.10372.20060 - 'GetXmlDataFromDataSource' Server-Side Request Forgery (SSRF)
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Microsoft5 products
- microsoft sharepoint enterprise server 2016≥ 16.0.0, < 16.0.5173.1000
- microsoft sharepoint foundation 2013 service pack 1≥ 15.0.0, < 15.0.5353.1000
- microsoft sharepoint server 2019≥ 16.0.0, < 16.0.10375.20000
- sharepoint_foundation2013:sp1
- sharepoint_server2016 | 2019
1 vendor · 5 products
References
2 links- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31950X Refsource MISCPatchVendor Advisory