CVE-2026-51564 in Admin
Summary
by MITRE • 07/28/2026
An issue in the redirect parameter in Milk admin <=0.9.8 allows remote attackers to redirect users to arbitrary external URLs via a crafted request.
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Analysis
by VulDB Data Team • 07/28/2026
The vulnerability described represents a critical open redirect flaw in the Milk admin panel version 0.9.8 and earlier, which exposes systems to various cybersecurity threats through improper input validation. This issue stems from insufficient sanitization of the redirect parameter, allowing attackers to manipulate the application's redirection behavior. The flaw enables malicious actors to craft specially formatted requests that cause the application to redirect users to externally controlled domains, potentially facilitating phishing attacks or credential theft operations.
This vulnerability falls under the category of CWE-601 Open Redirect, which is classified as a security weakness in software applications that fail to properly validate and sanitize user input before using it in redirection contexts. The technical implementation involves the application accepting unvalidated redirect parameters without proper domain validation or URL sanitization mechanisms. Attackers can exploit this by constructing malicious URLs containing crafted redirect parameters that point to attacker-controlled domains, bypassing normal security checks and user verification processes.
The operational impact of this vulnerability extends beyond simple redirection attacks, as it creates opportunities for sophisticated social engineering campaigns. When users are redirected to malicious domains through seemingly legitimate administrative interfaces, they may unknowingly provide credentials or sensitive information to attackers. The vulnerability can be leveraged in phishing attacks where the initial redirect appears to come from a trusted administrative source, making user detection and prevention significantly more difficult. Additionally, this flaw can facilitate malware distribution by redirecting users to sites hosting malicious payloads.
Security professionals should implement immediate mitigations including input validation for all redirect parameters, implementation of allow-lists for valid redirect domains, and comprehensive URL sanitization routines. The solution requires modifying the application code to validate redirect destinations against a predetermined whitelist of trusted domains rather than accepting arbitrary URLs. Organizations should also consider implementing additional security controls such as HTTP headers that prevent open redirects and regular security assessments to identify similar vulnerabilities across their applications. This vulnerability demonstrates the importance of proper input validation and the potential for seemingly minor flaws to create significant security risks in web applications, aligning with ATT&CK technique T1566 Phishing which emphasizes the exploitation of trusted sources for malicious redirection purposes.