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MEDIUM · 6.1

CVE-2026-45500

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

Vulnerability Description

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

CVSS Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
MicrosoftExchange Server2016
MicrosoftExchange Server Subscription Edition< 15.02.2562.043

Related Weaknesses (CWE)

CWE-79

References

FAQ

What is CVE-2026-45500?

CVE-2026-45500 is a vulnerability with a CVSS score of 6.1 (MEDIUM). Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

How severe is CVE-2026-45500?

CVE-2026-45500 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-45500?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Exchange Server, Microsoft Exchange Server Subscription Edition.