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CVE-2026-88204

HighCVSS 7.3/10Last modified Oct 14, 2026

Description

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

Metrics

CVSS 3.1 7.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Weakness enumeration

Affected software

Vendor	Product	Versions
Microsoft	Microsoft SharePoint Server Subscription Edition	>= 16.0.0, < 16.0.20326.20190

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88204Patch, Vendor Advisory

Timeline

Published: Oct 13, 2026
Last modified: Oct 14, 2026
NVD status: Analyzed

Related CVEs from 2026

CVE-2026-882067.5Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.CVE-2026-882077.5Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.CVE-2026-882084.6Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized att CVE-2026-882094.6Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized att CVE-2026-88217.1Mattermost versions 11.9.x <= 11.9.0, 11.8.x <= 11.8.4, 11.7.x <= 11.7.7, 10.11.x <= 10.11.22 fail to validate channel member-management per CVE-2026-882107.8Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature lo CVE-2026-882115.7Out-of-bounds read in Graphic Fonts allows an authorized attacker to disclose information over a network.CVE-2026-882127.5Use after free in Windows Network Address Translation (NAT) allows an unauthorized attacker to execute code over an adjacent network.CVE-2026-882137.8Numeric truncation error in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally.CVE-2026-882156.4Use after free in Windows Filtering Platform (WFP) allows an authorized attacker to elevate privileges locally.CVE-2026-882167.5Time-of-check time-of-use (toctou) race condition in Windows DHCP Server allows an authorized attacker to execute code over a network.CVE-2026-882175.5Use of uninitialized resource in Windows Graphics Kernel allows an authorized attacker to disclose information locally.

CVE-2026-88204: High severity, CVSS 7.3 | Vulnix