Unauthenticated privilege escalation via unchecked role update
Published Mar 8, 2026 · Updated Mar 8, 2026
Improper authorization in SourceCodester Client Database Management System 1.0 allows remote attackers to assign superadmin roles. The superadmin_user_update.php endpoint accepts unauthenticated POST data and writes its attacker-controlled role value directly to the users table. No session or role check is required, so remote attackers can promote an existing account and obtain superadmin control.
Summary
What happened
Improper authorization in SourceCodester Client Database Management System 1.0 allows remote attackers to assign superadmin roles. The superadmin_user_update.php endpoint accepts unauthenticated POST data and writes its attacker-controlled role value directly to the users table. No session or role check is required, so remote attackers can promote an existing account and obtain superadmin control.
The record
- CVE
- CVE-2026-3764
- Published
- Mar 8, 2026
- Updated
- Mar 8, 2026
- Vendor
- Online Computer and Laptop Store Project
- Product
- Client Database Management System
- Classifications
- CWE-285, CWE-266, T1098
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 8, 2026CVE publishedPublication date reported by the CVE source.
- Mar 8, 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=1.0
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.
Weakness, pattern, technique
Public exploit references
- Client Database Management System 1.0 Unauthenticated Privilege Escalation PoCproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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