CVE-2026-104389 in Sirv Plugin
Summary
by MITRE • 10/05/2026
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Sirv Sirv sirv allows Blind SQL Injection.This issue affects Sirv: from n/a through 8.2.5.
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Analysis
by VulDB Data Team • 10/05/2026
The identified security flaw represents a classic instance of Improper Neutralization of Special Elements used in an SQL Command, commonly referred to as SQL injection. This vulnerability specifically manifests within the Sirv platform, affecting versions ranging from its initial release up through version 8.2.5. The core technical deficiency lies in the application's failure to adequately sanitize or validate user-supplied input before incorporating it into dynamically constructed database queries. By neglecting to implement robust parameterization or strict type checking for specific data fields, the software inadvertently allows an attacker to inject malicious SQL syntax directly into the backend database engine. This architectural oversight transforms standard HTTP requests into vectors for unauthorized database interaction, bypassing intended application logic and security controls designed to isolate user input from system commands.
The operational impact of this vulnerability is characterized by its classification as a Blind SQL Injection attack. Unlike error-based or union-based injection techniques that rely on visible feedback in the application's response, blind injection requires the attacker to infer information based on subtle differences in behavior, such as page load times, conditional responses, or boolean logic outcomes. This method allows an adversary to systematically extract sensitive data from the database without triggering obvious errors that might alert security monitoring systems. Through time-based or boolean-based techniques, a malicious actor can query the underlying database schema, retrieve stored credentials, access proprietary business data, and potentially manipulate records. The stealthy nature of blind injection makes it particularly dangerous as it leaves minimal forensic traces during the initial exploitation phase, allowing prolonged unauthorized access to critical infrastructure components managed by Sirv.
From a threat modeling perspective, this vulnerability aligns with Common Weakness Enumeration identifier CWE-89, which categorizes improper neutralization of special elements in SQL commands. The attack vector corresponds to MITRE ATT&CK technique T1059.004, specifically Command and Scripting Interpreter: SQL Commands, under the broader category of Execution or Collection depending on the specific payload utilized by the attacker. Furthermore, if the vulnerability is leveraged to exfiltrate data, it falls under Data Exfiltration techniques within the ATT&CK framework. The lack of input validation violates fundamental secure coding principles outlined in OWASP guidelines for preventing SQL injection, emphasizing that all user inputs must be treated as untrusted until proven otherwise through rigorous sanitization and parameterized query execution.
Mitigation strategies require immediate remediation at both the application code level and infrastructure configuration layers. Developers must refactor affected endpoints to utilize prepared statements with strongly typed parameters, ensuring that database engines treat input data strictly as values rather than executable SQL commands. Input validation should be implemented using allow-listing principles where only expected character sets are permitted for each field, rejecting any anomalous characters such as single quotes or semicolons before they reach the query builder layer. Additionally, implementing Web Application Firewalls can provide a temporary defensive layer by detecting and blocking known SQL injection patterns in HTTP traffic while patches are deployed. For organizations currently running Sirv versions prior to 8.2.6, upgrading to the latest patched version is the primary corrective action required to eliminate this vulnerability from the attack surface.