CVE-2023-36020Network attack vector

Authenticated script execution via undisclosed web input

Published Dec 12, 2023 · Updated Jan 1, 2025

Cross-site scripting in Microsoft Dynamics 365 (on-premises) 9.0 and 9.1 allows remote authenticated users to run script in a user's browser. Microsoft has not disclosed the affected page, input, or code path that fails to neutralize attacker-controlled content. Exploitation requires low-privilege authentication and user interaction; executed script can expose data and modify content in the victim's security context.

CVSS severity7.6
High
EPSS probability1.00%
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 (on-premises) 9.0 and 9.1 allows remote authenticated users to run script in a user's browser. Microsoft has not disclosed the affected page, input, or code path that fails to neutralize attacker-controlled content. Exploitation requires low-privilege authentication and user interaction; executed script can expose data and modify content in the victim's security context.

The record

CVE
CVE-2023-36020
Published
Dec 12, 2023
Updated
Jan 1, 2025
Vendor
Microsoft
Product
Microsoft Dynamics 365 (on-premises) version 9.1
Classifications
CWE-79
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 1, 2025Record 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=9.0 <9.1.23.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Microsoft · Microsoft Dynamics 365 (on-premises) version 9.1version=9.0 <9.1.23.10
Microsoft · Microsoft Dynamics 365 (on-premises) version 9.0version=9.0.0 <9.0.51.06

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
7.6Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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

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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