Unauthenticated administrative access via request variable overwrite
Published Feb 27, 2026 · Updated Feb 27, 2026
Authentication bypass in WeGIA before 3.6.5 allows remote attackers to gain administrative access through a crafted login request. The html/login.php handler passes the entire request array to extract(), allowing parameters such as c, cpf, and id_pessoa to replace local variables and skip password validation. Unauthenticated network access is sufficient to create an administrator session, enabling access to protected data and administrative functions.
Summary
What happened
Authentication bypass in WeGIA before 3.6.5 allows remote attackers to gain administrative access through a crafted login request. The html/login.php handler passes the entire request array to extract(), allowing parameters such as c, cpf, and id_pessoa to replace local variables and skip password validation. Unauthenticated network access is sufficient to create an administrator session, enabling access to protected data and administrative functions.
The record
- CVE
- CVE-2026-28411
- Published
- Feb 27, 2026
- Updated
- Feb 27, 2026
- Vendor
- LabReDeS - Laboratório de Redes, Desenvolvimento e Segurança
- Product
- WeGIA
- Classifications
- CWE-288, CWE-473, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 27, 2026CVE publishedPublication date reported by the CVE source.
- Feb 27, 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=< 3.6.5
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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
- Vendor login authentication-bypass PoCproof of concept · 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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