Unauthenticated account data disclosure via arbitrary user lookup
Published Jun 19, 2026 · Updated Jun 19, 2026
Information disclosure in ARTIO Book it! 2 2.4.9 allows remote attackers to enumerate Joomla accounts through crafted GET requests. The customer controller's getUserData function accepts an arbitrary integer id, loads that Joomla user, and returns the account's name, username, and email address as JSON. No authentication is required; sequential id requests disclose account identities but do not modify accounts or interrupt service.
Summary
What happened
Information disclosure in ARTIO Book it! 2 2.4.9 allows remote attackers to enumerate Joomla accounts through crafted GET requests. The customer controller's getUserData function accepts an arbitrary integer id, loads that Joomla user, and returns the account's name, username, and email address as JSON. No authentication is required; sequential id requests disclose account identities but do not modify accounts or interrupt service.
The record
- CVE
- CVE-2023-54357
- Published
- Jun 19, 2026
- Updated
- Jun 19, 2026
- Vendor
- ARTIO
- Product
- Book it! 2
- Classifications
- CWE-203, T1087
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 19, 2026CVE publishedPublication date reported by the CVE source.
- Jun 19, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2.4.9
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- Joomla! com_booking component 2.4.9 Information Leak account enumeratorfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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