CVE-2026-42897 - Microsoft Microsoft
AI Vulnerability ContextImproper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
Overview
A source-backed snapshot of this vulnerability.
CISA KEVyesWhether CISA lists this as exploited.
Techniques0AI attack methods connected to this vulnerability.
Case studies0Examples where this vulnerability is mentioned.
Vulnerability status
How serious this vulnerability is and whether it is known to be exploited.
CISA KEVHIGH
- CVE ID
- CVE-2026-42897
- Vendor/project
- Microsoft
- Product
- Microsoft
- Vulnerability name
- Microsoft Exchange Server Cross-Site Scripting Vulnerability
- Date added
- 2026-05-15
- Due date
- 2026-05-29
- Known ransomware campaign use
- Unknown
- CVSS v3
- 8.1
CWE-79
Exploit context
What the vulnerability is about.
No description available. The source record only contains identifiers and metadata.
Source evidence
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Original source
Original source links
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NVD CVE pagehttps://nvd.nist.gov/vuln/detail/CVE-2026-42897CVE API docshttps://nvd.nist.gov/developers/vulnerabilitiesData feedshttps://nvd.nist.gov/vuln/data-feedsCataloghttps://www.cisa.gov/known-exploited-vulnerabilities-catalogData repositoryhttps://github.com/cisagov/kev-datasecure@microsoft.comhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42897134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-42897