sharepoint_server: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (CVE-2026-70355)

Weakness-Klassen (CWE)

• CWE-79Base

  Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

  The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

  cwe.mitre.org →

Re-Analyse & Statuswechsel

Chronologie der NVD-Audit-Events für diese CVE — Reanalyses, CVSS-Updates, CPE-Diffs.

1. New CVE Received2026-08-11 17:19 UTC· secure@microsoft.com
   • Affected: Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition
   • Description: Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
   • CVSS V3.1: AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
   • CWE: CWE-79

Betroffene Produkte

Aus der Hersteller-/CERT-Meldung extrahierte Produkte und Versionsbereiche. Ein Version-Range wie „<4.14.6“ impliziert die Update-Empfehlung „auf 4.14.6 oder höher aktualisieren“.

• microsoft

  sharepoint_server16.0.19725.20522

• microsoft

  sharepoint_server

Quellen & Referenzen

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70355
  vendor-advisorypatch

Verknüpfte Empfehlungen

• ncsc-nl2026-08-27 10:23 UTC
  NCSC-2026-0286 [1.01] [H/H] Kwetsbaarheden verholpen in Microsoft Office
• sans-atrisk-mail2026-08-13 00:00 UTC
  @RISK®: The Consensus Security Vulnerability Alert: Vol. 26, Num. 31