CVE intelligence and bounded remediation

CVE-2023-51371 — Bitapps Bit Assist security vulnerability

Medium CVSS 5.9

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bit Assist Chat Widget: WhatsApp Chat, Facebook Messenger Chat, Telegram Chat Bubble, Line Messenger, Live Chat Support Chat Button, WeChat, SMS, Call Button, Customer Support Button with floating Chat Widget allows Stored XSS.This issue affects Chat Widget: WhatsApp Chat, Facebook Messenger Chat, Telegram Chat Bubble, Line Messenger, Live Chat Support Chat Button, WeChat, SMS, Call Button, Customer Support Button with floating Chat Widget: from n/a through 1.1.9.

Severity
Medium
CVSS
5.9 (3.1)
Published
2023-12-29
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-79

Affected products

  • bitapps / bit_assist

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

The detailed catalog view below loads this exact record, its source evidence, and the full seven-phase agentic change plan.