CVE-2026-26144

4.7 mediumEPSS 1.3%

Medium (4.7) in microsoft 365 apps. EPSS 1.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.7 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

EPSS: 1.3% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-03-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

microsoft:365_apps

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26144

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