CVE-2026-61518
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk37th percentile - higher than 37% of all known CVEs
Summary
ISPConfig contains an authenticated SQL injection vulnerability in the Remote API. The primary_id parameter in delete and update methods is concatenated directly into SQL WHERE clauses without integer casting or parameterized binding. A user with any low-privilege function permission can inject arbitrary SQL, delete or modify records across all tenants, and extract data including password hashes.
Risk Assessment
An attacker can gain unauthorized access to all clients' data, compromising confidentiality and integrity of the control panel database.
Recommendation
Apply the vendor-provided patch or restrict access to the Remote API and enforce parameterized queries.
Other vulnerabilities in ISPConfig
See all- CVE-2017-17384High
ISPConfig 3.x before 3.1.9 allows remote authenticated users to obtain root access by creating a crafted cron job.
- CVE-2025-52206Medium
ISPConfig 3.3.0 is vulnerable to Cross Site Scripting (XSS) via the system status webpage. This allows an attacker to inject malicious scripts into the administrator's browser.
Original NVD description (English source)
ISPConfig contains an authenticated SQL injection vulnerability in the Remote API. The primary_id parameter passed to delete and update API methods is concatenated directly into SQL WHERE clauses without integer casting or parameterized query binding. The built-in SQL injection scanner does not block quote-free boolean payloads and does not reject requests in its default configuration. A remote API user holding any single low-privilege function permission can inject arbitrary SQL to delete or modify records across all tenants in the control panel database and extract arbitrary data via blind boolean inference, including password hashes and client records.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS