CVE intelligence and bounded remediation

CVE-2020-1460 — Microsoft Sharepoint Enterprise Server security vulnerability

High CVSS 8.8

<p>A remote code execution vulnerability exists in Microsoft SharePoint Server when it fails to properly identify and filter unsafe ASP.Net web controls. An authenticated attacker who successfully exploited the vulnerability could use a specially crafted page to perform actions in the security context of the SharePoint application pool process.</p> <p>To exploit the vulnerability, an authenticated user must create and invoke a specially crafted page on an affected version of Microsoft SharePoint Server.</p> <p>The security update addresses the vulnerability by correcting how Microsoft SharePoint Server handles processing of created content.</p>

Severity
High
CVSS
8.8 (3.1)
Published
2020-09-11
CISA KEV
Not currently listed
Ecosystem
windows/system

Affected products

  • microsoft / sharepoint_enterprise_server / 2013
  • microsoft / sharepoint_enterprise_server / 2016
  • microsoft / sharepoint_foundation / 2010
  • microsoft / sharepoint_foundation / 2013
  • microsoft / sharepoint_server / 2019

Matched remediation archetype

Command, code, expression, and template injection

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
  • Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
  • Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.

Remediate safely

  • Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
  • Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
  • Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.

Authoritative sources

Complete CVE record and remediation plan

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