Authenticated script execution via undisclosed web input
Published Feb 13, 2024 · Updated Aug 10, 2026
Cross-site scripting in Microsoft Dynamics 365 on-premises before 9.1.25.17 allows remote authenticated users to execute script. Microsoft identifies improper neutralization during web-page generation but has not disclosed the affected field, request handler, or encoding failure. Exploitation requires low-privileged access and another user to interact with crafted content, enabling disclosure of browser-accessible data and limited content modification.
Summary
What happened
Cross-site scripting in Microsoft Dynamics 365 on-premises before 9.1.25.17 allows remote authenticated users to execute script. Microsoft identifies improper neutralization during web-page generation but has not disclosed the affected field, request handler, or encoding failure. Exploitation requires low-privileged access and another user to interact with crafted content, enabling disclosure of browser-accessible data and limited content modification.
The record
- CVE
- CVE-2024-21394
- Published
- Feb 13, 2024
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Microsoft Dynamics 365 (on-premises) version 9.1
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 13, 2024CVE publishedPublication date reported by the CVE source.
- Aug 10, 2026Record 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.
- Affected versionversion=9.0 <9.1.25.17
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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