Description

Unauthenticated SQL Injection in Nikstore Core <= 1.5 versions.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "9.3",
  "pubDate": "2026-08-19T13:18:08.160Z",
  "pubdate": "2026-08-19T13:18:08.160Z",
  "executiveSummary": "An unauthenticated SQL injection vulnerability has been identified in Nikstore Core versions <= 1.5. This security flaw arises from improper neutralization of special elements within user-supplied input parameters before insertion into backend database queries. Consequently, remote, unauthenticated attackers can exploit this vulnerability to manipulate SQL query logic executed by the underlying database management system.\nThe impact of successful exploitation is critical, potentially granting unauthorized access to sensitive application data, including user credentials, administrative records, and proprietary business information. Depending on database configuration and backend privileges, an attacker could also execute arbitrary database commands, bypass authentication mechanisms, or achieve remote code execution on the hosting server.\nThe vulnerability affects all deployments of Nikstore Core version 1.5 and earlier. Exploitation requires no prior authentication or elevated privileges, making it accessible to any external threat actor with network connectivity to the vulnerable application. Remediation requires updating the affected software to a patched version or applying proper input sanitization and parameterized queries to the vulnerable database interaction routines.",
  "technicalDetails": "The root cause of the vulnerability stems from insufficient input validation and a lack of parameterized queries within the Nikstore Core application logic. When processing incoming HTTP requests, application handlers directly concatenate untrusted user input into dynamic SQL statements. This architectural flaw allows malicious SQL syntax to be interpreted as executable database commands rather than literal data strings.\nThe affected component resides within the Nikstore Core request-handling codebase, specifically targeting versions <= 1.5. The vulnerability is exposed over the network via standard HTTP protocols, requiring no authentication or specific privileges for exploitation. Attackers interact with vulnerable input vectors by submitting crafted payloads designed to alter the structural logic of backend database queries.\nThe attack flow proceeds in several distinct steps. First, the threat actor identifies a vulnerable input parameter susceptible to SQL injection through automated scanning or manual inspection. Second, the attacker crafts a malicious payload containing SQL operators, UNION statements, or boolean conditions. Third, the unauthenticated HTTP request containing the payload is transmitted to the vulnerable Nikstore Core endpoint. Fourth, the application processes the input without proper sanitization or parameterization, embedding the malicious string directly into the database query.\nUpon execution by the database management system, the injected payload alters the intended query semantics. Post-exploitation impact varies depending on the database user privileges, but typically includes data exfiltration via error-based, union-based, or blind SQL injection techniques, modification or deletion of database records, and potential escalation to operating system command execution through advanced database features."
}