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.
CVE-2026-61518
Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-19. a secondary CVSS source baseline 8.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(high)
- EG Risk
- 56(Track*)EG Risk 56/100SSVC: Track*
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity88% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Watch closely — could escalate to Attend. - EPSS PROB
- 0%
- EPSS %ILE
- 24%
- KEV
- Not listed
Published
August 19, 2026
Last Modified
August 20, 2026
Advisory Details (2)
Auto-updated Aug 19, 2026ISPConfig Authenticated SQL Injection via Remote API primary_id Parameter | Advisories | VulnCheck
https://www.vulncheck.com/advisories/ispconfig-authenticated-sql-injection-via-remote-api-primary-id-parameteross/ispconfig3.md at main · geo-chen/oss · GitHub
https://github.com/geo-chen/oss/blob/main/ispconfig3.mdVendor Advisories for CVE-2026-61518(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 12× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-21 04:38 UTCEG score recompute
- 2026-08-21 04:38 UTCGHSA enrichment
- 2026-08-20 22:55 UTCEPSS rescore
- 2026-08-20 16:37 UTCEG score recompute
- 2026-08-20 16:37 UTCGHSA enrichment
- 2026-08-20 15:45 UTCEG score recompute
- 2026-08-20 15:45 UTCGHSA enrichment
- 2026-08-20 06:17 UTCEG score recompute
- 2026-08-20 06:16 UTCGHSA enrichment
- 2026-08-19 18:18 UTCEG score recompute
- 2026-08-19 17:53 UTCEG score recompute
- 2026-08-19 17:52 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-61518?
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-61518
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