CVE intelligence and bounded remediation

CVE-2025-20147 — Cisco Catalyst Sd-Wan Manager security vulnerability

Medium CVSS 5.4

A vulnerability in the web-based management interface of Cisco Catalyst SD-WAN Manager, formerly Cisco SD-WAN vManage, could allow an authenticated, remote attacker to conduct a stored cross-site scripting attack (XSS) on an affected system.  This vulnerability is due to improper sanitization of user input to the web-based management interface. An attacker could exploit this vulnerability by submitting a malicious script through the interface. A successful exploit could allow the attacker to conduct a stored XSS attack on the affected system.

Severity
Medium
CVSS
5.4 (3.1)
Published
2025-05-07
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-79

Affected products

  • cisco / catalyst_sd-wan_manager / 17.2.4
  • cisco / catalyst_sd-wan_manager / 17.2.5
  • cisco / catalyst_sd-wan_manager / 17.2.6
  • cisco / catalyst_sd-wan_manager / 17.2.7
  • cisco / catalyst_sd-wan_manager / 17.2.8
  • cisco / catalyst_sd-wan_manager / 17.2.9

Showing 6 representative product identities from 279 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Cross-site scripting and unsafe browser output

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Check exposure

  • Trace reflected, stored, and DOM-derived untrusted values into HTML, attributes, URLs, styles, scripts, and client-side template sinks.
  • Identify affected origins, authenticated user roles, sensitive browser capabilities, and where content is shared across tenants.
  • Review framework escaping, rich-text sanitization, legacy templates, and client-side rendering paths.

Remediate safely

  • Use context-aware framework output encoding and safe DOM APIs; keep untrusted data out of executable contexts.
  • Sanitize intentionally supported markup with a maintained allowlist policy and validate URLs and attributes separately.
  • Update affected rendering components and add tests for every output context using inert sentinel markup.

Authoritative sources

Complete CVE record and remediation plan

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