What is the CVSS score of CVE-2025-49745?

CVE-2025-49745 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of Dynamics 365 are affected by CVE-2025-49745?

CVE-2025-49745 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 5.4. Attackers could inject scripts to steal sessions or perform actions as authenticated users.

How to fix or mitigate CVE-2025-49745?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Dynamics 365 CVE-2025-49745

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2025-08-12 secure@microsoft.com

Microsoft XSS Dynamics 365

5.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:06 vuln.today

CVE Published

Aug 12, 2025 - 18:15 nvd

MEDIUM 5.4

DescriptionCVE.org

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Dynamics 365 (on-premises) allows an unauthorized attacker to perform spoofing over a network.

AnalysisAI

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Dynamics 365 (on-premises) allows an unauthorized attacker to perform spoofing over a network. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Dynamics 365 (on-premises) allows an unauthorized attacker to perform spoofing over a network. Affected products include: Microsoft Dynamics 365.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.