CVE intelligence and bounded remediation

CVE-2020-28968 — Draytek VigorAP 1000C contains a stored cross-site scripting (XSS) vulnerability in the RADIUS Setting - RADIUS Server Configuration module

Medium CVSS 5.4

Draytek VigorAP 1000C contains a stored cross-site scripting (XSS) vulnerability in the RADIUS Setting - RADIUS Server Configuration module. This vulnerability allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the username input field.

Severity
Medium
CVSS
5.4 (3.1)
Published
2021-10-22
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-79

Affected products

  • draytek / vigorap_1000c_firmware / 1.3.2
  • draytek / vigorap_700_firmware / 1.11
  • draytek / vigorap_710_firmware / 1.2.5
  • draytek / vigorap_800_firmware / 1.1.4
  • draytek / vigorap_802_firmware / 1.3.2
  • draytek / vigorap_810_firmware / 1.2.5

Showing 6 representative product identities from 13 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Cross-site scripting and unsafe browser output

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

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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