Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-61518

CVE-2026-61518HIGH

ISPConfig Authenticated SQL Injection via Remote API primary_id Parameter

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   L   N   H   H   H    8.7   .0046   37.3     —

AFFECTED
  Product     Versions  Fixed
  ispconfig3  3.2.0 –   —

TIMELINE
  Jul 10  Reserved by VulnCheck
  Aug 19  Published (CNA: VulnCheck)
  Aug 20  EXPLOIT PUBLISHED — CVE-2026-61518 (ispconfig3). Public exploit reference added.

CWE-89 · CNA: VulnCheck · CVSS v4.0 · 2 references · NVD status: Awaiting Analysis

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
July 10, 2026	Reserved	Reserved by VulnCheck
August 19, 2026	Published	Published (CNA: VulnCheck)
August 20, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-61518 (ispconfig3). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
ispconfig	ispconfig3	—	3.2.0	—

Weaknesses

CWE-89

References (2)

Authoritative record: CVE-2026-61518 at cve.org

Vendors: ispconfig

Weaknesses: CWE-89

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-61518 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.