BlackTreeCVE Intelligence
← Back to the CVE catalogue
Full vulnerability report · 2023
CVE-2023-21573High confidence

Microsoft Dynamics 365 (on-premises) Cross-site Scripting Vulnerability

Microsoft · Microsoft Dynamics 365 (on-premises) version 9.0

5.4MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.61% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Microsoft Microsoft Dynamics 365 (on-premises) version 9.0 and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-25740

No EUVD known-exploited evidence

Microsoft Dynamics 365 (on-premises) Cross-site Scripting Vulnerability

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
5.4 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

Microsoft Dynamics 365 (on-premises) Cross-site Scripting Vulnerability

What

Microsoft Dynamics 365 (on-premises) Cross-site Scripting Vulnerability

Why

Attacker-controlled content can reach a browser as executable script without sufficient output encoding or sanitisation.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Microsoft Dynamics 365 (on-premises) Cross-site Scripting Vulnerability

Why

Attacker-controlled content can reach a browser as executable script without sufficient output encoding or sanitisation.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
Required interaction required
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-79 ↗

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SChangedScope: The attack can affect a component governed by a different security authority.CLowConfidentiality impact: A successful attack can cause a limited loss.ILowIntegrity impact: A successful attack can cause a limited loss.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkCWE-79
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2023-25740Official EUVD mapping

Microsoft Dynamics 365 (on-premises) Cross-site Scripting Vulnerability

Official EUVD record ↗
Cyber Security Agency of Singapore · English · CSA-SB-20230215Security Bulletin 15 Feb 2023

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 15 Feb 2023, published on 15 February 2023. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2023-AVI-0133Multiples vulnérabilités dans les produits Microsoft

février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21567 Bulletin de sécurité Microsoft CVE-2023-21568 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21568 Bulletin de sécurité Microsoft CVE-2023-21570 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21570 Bulletin de sécurité Microsoft CVE-2023-21571 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21571 Bulletin de sécurité Microsoft CVE-2023-21572 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21572 Bulletin de sécurité Microsoft CVE-2023-21573 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21573 Bulletin de sécurité Microsoft CVE-2023-21704 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21704 Bulletin de sécurité Microsoft CVE-2023-21705 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21705 Bulletin de sécurité Microsoft CVE-2023-21706 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21706 Bulletin de sécurité Microsoft CVE-2023-21707 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21707 Bulletin de sécurité Micr

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2023-001249Microsoft Dynamics 365 におけるクロスサイトスクリプティングの脆弱性

Microsoft Dynamics 365 (on-premises) には、クロスサイトスクリプティングの脆弱性が存在します。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5870MS 2월 보안 위협에 따른 정기 보안 업데이트 권고

-21690 Microsoft PEAP(Protected Extensible Authentication Protocol) 원격 코드 실행 취약점 Windows Protected EAP (PEAP) CVE-2023-21689 Microsoft PEAP(Protected Extensible Authentication Protocol) 원격 코드 실행 취약점 Windows ALPC CVE-2023-21688 NT OS 커널 권한 상승 취약점 Windows HTTP.sys CVE-2023-21687 HTTP.sys 정보 유출 취약점 Microsoft WDAC OLE DB provider for SQL CVE-2023-21686 Microsoft WDAC OLE DB provider for SQL Server에서 발생하는 원격 코드 실행 취약점 Microsoft WDAC OLE DB provider for SQL CVE-2023-21685 Microsoft WDAC OLE DB provider for SQL Server에서 발생하는 원격 코드 실행 취약점 Microsoft PostScript Printer Driver CVE-2023-21684 Microsoft PostScript 프린터 드라이버 원격 코드 실행 취약점 Microsoft Dynamics CVE-2023-21573 Microsoft Dynamics 365(온프레미스) 크로스 사이트 스크립팅 취약점 Microsoft Dynamics CVE-2023-21572 Microsoft Dynamics 365(온프레미스) 크로스 사이트 스크립팅 취약점 Microsoft Dynamics CVE-2023-21571 Microsoft Dynamics 365(온프레미스) 크로스 사이트 스크립팅 취약점 Microsoft Dynamics CVE-2023-21570 Microsoft Dynamics 365(온프레미스) 크로스 사이트 스크립팅 취약점 SQL Server CVE-2023-21568 Microsoft SQL Server 통합 서비스(VS 확장) 원격 코드 실행 취약점 Visual Studio CVE-2023-21567 Visual Studio 서비스 거부 취약점 Visual Studio CVE-2023-21566 Visual Studio 권한 상승 취약점 Azure DevOps CVE-2023-21564 Azure DevOps 서버 사이트 간 스크립팅 취약점 Azure DevOps CVE-2023-21553 Azure DevOps 서버 원격 코드 실행 취약점 Microsoft Exchange Server CVE-2023-21529 Microsoft Exchange Se

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 14 Feb 2023 · Last source change 19 Aug 2026, 16:26 UTC · CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2023-25740
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    9.0 < 9.1.16.20; 9.0.0 < 9.0.45.11 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    9.0.0 < 9.0.45.11; 9.0 < 9.1.16.20 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2023-25740↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2023-21573 · cve.blacktree.nl