Security readout for executives and security teams
Plain-English summary
A cross-site scripting flaw in Microsoft Dynamics 365 on-premises could let a low-privileged user place malicious web content that executes when another user interacts with it. Successful exploitation could expose sensitive information and make limited unauthorized changes. Availability is not identified as affected.
Executive priority
Prioritize prompt validation and patching for exposed or widely accessible on-premises deployments. Treat this as high priority where Dynamics contains sensitive customer or business data. The required privileges and user interaction provide some constraint, but they do not remove risk from compromised or malicious accounts.
Technical view
CVE-2024-43476 is CWE-79 with CVSS 3.1 score 7.6. The vector indicates network reachability, low complexity, low privileges, required user interaction, and a scope change. Potential impact is high confidentiality loss and low integrity loss, without availability impact. The supplied affected-version data is internally inconsistent between version 9.1 and 9.0.
Likely exposure
Organizations operating Microsoft Dynamics 365 on-premises should investigate, especially deployments accessible to untrusted or broadly provisioned users. The bundle names version 9.1 but separately lists version 9.0, so administrators should confirm affected builds directly with Microsoft rather than relying on this ambiguous version data.
Exploitation context
The supplied sources do not establish active exploitation, and the CVE is not listed as KEV in the bundle. Exploitation requires low privileges and victim interaction, reducing immediacy but making phishing or abuse of legitimate accounts plausible risk contexts. No exploit mechanics are provided.
Researcher notes
The score and vector support authenticated, interaction-dependent XSS with cross-scope consequences. Public details in the supplied bundle do not identify the vulnerable input, execution context, patch identifier, or observed attacks. The conflicting 9.1 product label and 9.0 version entry require vendor confirmation before asserting exact exposure.
Mitigation direction
- Review Microsoft’s CVE advisory for the applicable security update and affected build details.
- Apply the Microsoft-provided update using the organization’s normal change-management process.
- Restrict Dynamics access to trusted users and networks until remediation is confirmed.
- Monitor Dynamics content and accounts for suspicious activity or unauthorized changes.
Validation and detection
- Inventory all Microsoft Dynamics 365 on-premises instances and record exact versions and builds.
- Compare installed builds with Microsoft’s current CVE advisory and update guidance.
- Confirm the applicable security update is installed across every identified instance.
- Review logs for suspicious content creation, account activity, and unexpected user interactions.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2024-43476 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N/E:U/RL:O/RC:C
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N/E:U/RL:O/RC:C2.34.7microsoftVulnerability scoring details
Base CVSS 3.1 score
7.6HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N/E:U/RL:O/RC:C
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- Microsoft Dynamics 365 (on-premises) Cross-site Scripting VulnerabilityCVE reference, microsoft · vendor-advisory, patch
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.