May 2026: Microsoft Exchange Server Spoofing Vulnerability
CVE-2026-42897 Published on May 14, 2026
Microsoft Exchange Server Spoofing Vulnerability
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.
Weakness Type
What is a XSS Vulnerability?
The software 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.
CVE-2026-42897 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-42897
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Affected Versions
Microsoft Exchange Server 2016 Cumulative Update 23:- Version - is affected.
- Version - is affected.
- Version - is affected.
- Version - is affected.