# CVE-2026-42897

> **Microsoft Microsoft** vulnerability · **listed in CISA Known Exploited Vulnerabilities catalog**.

## Description

Microsoft Exchange Server contains a cross-site scripting vulnerability during web page generation in Outlook Web Access and when certain interaction conditions are met, arbitrary JavaScript can be executed in the browser context.

## Key facts

- **CVE ID:** CVE-2026-42897
- **Vendor:** Microsoft
- **Product:** Microsoft
- **Published:** 2026-05-15
- **CISA remediation due date:** 2026-05-29

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-42897
- CISA KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

## Citation

> AI Analytics. CVE-2026-42897. Retrieved 2026-05-16 from https://api.ai-analytics.org/cve/CVE-2026-42897. Derived from NIST NVD + CISA KEV. Licensed CC0.

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