5.4

CVE-2020-0903: microsoft exchange_server Cross-site Scripting

CVSS: 5.4v3.1MediumModified
Published 12-03-2020Last modified 28-02-2025
Open JSON

Vulnerability summary

CVE-2020-0903 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in microsoft exchange_server. EPSS estimates a 1.65% chance of exploitation in the next 30 days, higher than 76.1% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
1.65%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-03-2020
    PublishedVulnerability first disclosed.
  2. 28-02-2025
    Last modifiedVulnerability information updated.

Description

A cross-site-scripting (XSS) vulnerability exists when Microsoft Exchange Server does not properly sanitize a specially crafted web request to an affected Exchange server, aka 'Microsoft Exchange Server Spoofing Vulnerability'.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.65%

Chance of exploitation in the next 30 days

Percentile

76%

Versus all other CVEs

30-day change

0.00 pp

From 1.65% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.65%

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

Microsoft5 products

1 vendor · 5 products

References

1 links