Qsync Central CVE-2025-29892

The CVSS 3.1 vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H indicates a high-impact vulnerability with moderate barriers to exploitation: Network accessibility (AV:N) means remote attack is possible; Low complexity (AC:L) means no special conditions or tools are needed; Low privilege requirement (PR:L) means any authenticated user can exploit it; No user interaction (UI:N) means the attack is fully automated. The high impact ratings (C:H, I:H, A:H) demonstrate that successful exploitation grants complete system compromise—attackers can read sensitive data, modify or delete records, and cause denial of service. While EPSS data is not provided in the intelligence, the combination of low attack complexity, network accessibility, and high impact—coupled with the established patch date of 2025/03/20—suggests this is a genuine, exploitable vulnerability with significant real-world risk, particularly in organizations running unpatched versions. The authenticated requirement (PR:L) slightly reduces risk compared to unauthenticated SQL injection, but does not substantially lower priority given the prevalence of credential compromise in enterprise environments.

An attacker with legitimate credentials (obtained through credential stuffing, phishing, insider threat, or previous breach) logs into Qsync Central as an authenticated user. The attacker navigates to a functionality that accepts user input—such as a search field, filter, report generation interface, or administrative configuration panel—and injects malicious SQL payload (e.g., ' OR '1'='1; DROP TABLE users;--). Due to insufficient input validation and parameterization, the application concatenates the attacker's input directly into a SQL query without escaping. The database executes the injected SQL, allowing the attacker to: extract sensitive data (user credentials, file metadata, audit logs), modify or delete records in the database (corrupting data integrity), create unauthorized administrative accounts, or execute stored procedures with database-level privileges. The attack requires no special tools—standard SQL injection techniques work immediately. No user interaction is required; the attack is fully automated and repeatable. An attacker could silently exfiltrate data or cause data corruption without triggering obvious alerts.