CVE-2020-1050Network attack vector

Cross-site scripting via unsanitized crafted web requests

Published Apr 15, 2020 · Updated Aug 4, 2024

Cross-site scripting in Microsoft Dynamics 365 Server 9.0 allows remote attackers to inject script through crafted web requests. The server fails to sanitize attacker-controlled request data before incorporating it into browser-rendered content; Microsoft has not disclosed the affected endpoint or parameter. Victim interaction is required, after which the script runs in the victim's browser context and can read or alter data available to that session.

CVSS severity6.1
Medium
EPSS probability1.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Microsoft Dynamics 365 Server 9.0 allows remote attackers to inject script through crafted web requests. The server fails to sanitize attacker-controlled request data before incorporating it into browser-rendered content; Microsoft has not disclosed the affected endpoint or parameter. Victim interaction is required, after which the script runs in the victim's browser context and can read or alter data available to that session.

The record

CVE
CVE-2020-1050
Published
Apr 15, 2020
Updated
Aug 4, 2024
Vendor
Microsoft
Product
Dynamics 365 Server
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Dynamics 365 Serverversion=unspecified

Published CVSS scores

6.1NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NIST National Vulnerability DatabaseAV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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