CVE-2026-33113
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.
CSIRTS triage
- What
- Improper neutralization of input during web page generation in Microsoft Office SharePoint allows an authorized attacker to perform spoofing.
- Who is affected
- Users of Microsoft SharePoint Server.
- Urgency
- Remediation is important but not urgent as there is no active exploitation reported.
- Action
- Update Microsoft SharePoint Server to the latest version to mitigate the vulnerability.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.52% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all EPSS-scored CVEs.
Advisory coverage (1)
- mediumCVE-2026-33113: Microsoft SharePoint Server Spoofing Vulnerabilitymsrc · 2026-06-09
External references
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[](https://www.csirts.com/cve/CVE-2026-33113)