CVE-2026-61518

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/geo-chen/oss/blob/main/ispconfig3.md
https://www.vulncheck.com/advisories/ispconfig-authenticated-sql-injection-via-remote-api-primary-id-parameter

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-19 18:16

Updated : 2026-08-20 16:17

NVD link : CVE-2026-61518

Mitre link : CVE-2026-61518

CVE.ORG link : CVE-2026-61518

JSON object : View

Products Affected

No product.

CWE

CWE-89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

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