CVE intelligence and bounded remediation

CVE-2020-14965 — Tp-Link Tl-Wr740N Firmware security vulnerability

Medium CVSS 4.8

On TP-Link TL-WR740N v4 and TL-WR740ND v4 devices, an attacker with access to the admin panel can inject HTML code and change the HTML context of the target pages and stations in the access-control settings via targets_lists_name or hosts_lists_name. The vulnerability can also be exploited through a CSRF, requiring no authentication as an administrator.

Severity
Medium
CVSS
4.8 (3.1)
Published
2020-06-23
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-79

Affected products

  • tp-link / tl-wr740n_firmware
  • tp-link / tl-wr740nd_firmware

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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