Unauthenticated admin access via login SQL injection
Published Apr 10, 2026 · Updated Apr 10, 2026
SQL injection in PHP-MYSQL-User-Login-System 1.0 allows remote attackers to bypass admin authentication via the login username. The login.php handler interpolates the submitted username and password into a quoted SELECT against the admin table without parameterization. No credentials or user interaction are required; a username tautology returns the first administrator record and opens the admin dashboard.
Summary
What happened
SQL injection in PHP-MYSQL-User-Login-System 1.0 allows remote attackers to bypass admin authentication via the login username. The login.php handler interpolates the submitted username and password into a quoted SELECT against the admin table without parameterization. No credentials or user interaction are required; a username tautology returns the first administrator record and opens the admin dashboard.
The record
- CVE
- CVE-2026-29861
- Published
- Apr 10, 2026
- Updated
- Apr 10, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-89, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 10, 2026CVE publishedPublication date reported by the CVE source.
- Apr 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
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Published CVSS scores
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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
- CVE-2026-29861 login authentication-bypass proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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