CVE-2026-72598Network attack vectorHinoki check available

Internal network access via unchecked webhook URLs

Published Aug 11, 2026 · Updated Aug 11, 2026

Server-side request forgery in Apioo Fusio 8.8.3 allows remote authenticated users to send HTTP requests to internal hosts via webhooks. The webhook registration endpoint checks URL syntax with FILTER_VALIDATE_URL but does not restrict private or loopback hosts before storing the destination. Consumer-role access and a matching event are required; once triggered, Fusio sends an HTTP POST into network locations unavailable to the user.

CVSS severity6.5
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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Summary

What happened

Server-side request forgery in Apioo Fusio 8.8.3 allows remote authenticated users to send HTTP requests to internal hosts via webhooks. The webhook registration endpoint checks URL syntax with FILTER_VALIDATE_URL but does not restrict private or loopback hosts before storing the destination. Consumer-role access and a matching event are required; once triggered, Fusio sends an HTTP POST into network locations unavailable to the user.

The record

CVE
CVE-2026-72598
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
Apioo
Product
Fusio
Classifications
CWE-918, CAPEC-664, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=8.8.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Apioo · Fusioversion=0 <=8.8.3

Published CVSS scores

6.5TuranSecCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
CAPEC-664Server Side Request Forgery
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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