6.3

CVE-2025-21393: microsoft microsoft sharepoint enterprise server 2016 Cross-site Scripting

CVSS: 6.3v3.1MediumAnalyzed
Published 14-01-2025Last modified 09-06-2026
Open JSON

Vulnerability summary

CVE-2025-21393 is a medium (CVSS 6.3) Cross-site Scripting vulnerability in microsoft microsoft sharepoint enterprise server 2016. EPSS estimates a 1.06% chance of exploitation in the next 30 days, higher than 64.1% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
1.06%
0%100%
Low · -0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-01-2025
    PublishedVulnerability first disclosed.
  2. 09-06-2026
    Last modifiedVulnerability information updated.

Description

Microsoft SharePoint Server Spoofing Vulnerability

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.06%

Chance of exploitation in the next 30 days

Percentile

64%

Versus all other CVEs

30-day change

-0.02 pp

From 1.08% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.06%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft4 products

1 vendor · 4 products

References

1 links