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.
Severity
Important
CVSS base score
3.5
Impact
Spoofing
Exploitation detected
No known exploitation (MSRC assessment)
Exploitability
Exploitation Unlikely
Publicly disclosed
No (MSRC assessment)
EPSS · 30-day forecast
0.4%FIRST forecast dated 10 Nov 2026, for the following 30 days · FIRST percentile 34.1% · about EPSS
Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
Detection template: No Nuclei template listed · Customer action: Required: apply the update → Required: follow the MSRC remediation guidance · Public disclosure: No → No (MSRC assessment) · Exploitation detected: Not reported by MSRC → No known exploitation (MSRC assessment)
Detection template: Unknown: exploit-code evidence is incomplete or retained → No Nuclei template listed · CISA KEV: Unknown: catalog evidence is incomplete or retained → Not listed in the collected catalog
Detection template: No Nuclei template listed → Unknown: exploit-code evidence is incomplete or retained · CISA KEV: Not listed in the collected catalog → Unknown: catalog evidence is incomplete or retained
Page history
Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.
CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.
No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.
Dated risk observations
Risk history is separate from CNA/OSV content history. Daily score drift is retained but only an upward crossing of 10% triggers the prediction change event.
Immutable source observations
4 recorded revisions
Each citation identifies one complete source statement. Source modification dates and the time this installation observed them are distinct. Latest history includes records historically associated by source identifiers; a removed alias is not a current equivalence claim. Exact citations show that source record's own earlier observations. Failed reads and unchanged polls do not rewrite history.