SEPTEMBER 12, 2026
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Case File

CVE-2026-55021

HIGH · CVSS 7.3 EPSS 0.65%

Source: NVD + CISA KEV + EPSS · Published 2026-07-14 · Last synced 2026-08-13

CyberRota Analysis

AI-Generated

Microsoft SharePoint and Office are vulnerable to a cross-site scripting (XSS) flaw that enables authorized attackers to inject malicious scripts, potentially leading to spoofing attacks over the network. This vulnerability poses a significant risk to the integrity of web applications and user data. Organizations using these products should prioritize patching to mitigate potential exploitation.

CVE
CVE-2026-55021
Severity
HIGH
CVSS
7.3
EPSS
0.65%
Microsoft SharePoint Office

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)