XSS in Microsoft Sharepoint Enterprise Server
CVE-2020-1456
A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server, aka 'Microsoft Office SharePoint XSS Vulnerability'. This CVE ID is unique from CVE-2020-1450, CVE-2020-1451.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.022 (82.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
- Microsoft Sharepoint Enterprise Server — versions 2016, 2013 Service Pack 1
- Microsoft Sharepoint Server — versions 2019, 2010 Service Pack 2
- Microsoft Sharepoint Enterprise Server — versions 2013, 2016
- Microsoft Sharepoint Server — versions 2010, 2019
Weakness classification (CWE)
Public proof-of-concept exploits
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1456 (Patch, Vendor Advisory)
- slashcrypto.org/2021/01/15/CVE-2020-1456/ (Exploit, Third Party Advisory)
- it-sec.de/ger/Aktuelles-Termine/it.sec-blog/it.sec-Research-Team-findet-unbekan… (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-1456?
- CVE-2020-1456 is a medium-severity vulnerability in Microsoft Sharepoint Enterprise Server, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-07-14.
- How severe is CVE-2020-1456?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2020-1456 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.