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Findings

CVE-2026-26144

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office Excel allows an unauthorized attacker to disclose information…

Published Mar 10, 2026 · updated Jun 17, 2026 · microsoft 365 apps

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 10, 2026 · NIST NVD

    Detected

    Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

Affected

  • cpe microsoft/365 appsversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-26144

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-26144

    Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

    nvd.nist.gov

References