CVE-2026-90935Public exploitNetwork attack vectorHinoki check available

Authenticated database creation via omitted server allowlist

Published Sep 14, 2026 · Updated Sep 14, 2026

Improper authorization in Froxlor before 2.3.7 allows remote authenticated users to create databases on disallowed MySQL servers. The Mysqls.add API validates mysql_server only as a numeric, configured index and omits the caller's allowed_mysqlserver membership check. Exploitation requires an API-enabled customer, credentials, spare database quota, and at least two configured servers; it creates an attacker-controlled database and MySQL user but does not expose other tenants' data.

CVSS severity4.3
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper authorization in Froxlor before 2.3.7 allows remote authenticated users to create databases on disallowed MySQL servers. The Mysqls.add API validates mysql_server only as a numeric, configured index and omits the caller's allowed_mysqlserver membership check. Exploitation requires an API-enabled customer, credentials, spare database quota, and at least two configured servers; it creates an attacker-controlled database and MySQL user but does not expose other tenants' data.

The record

CVE
CVE-2026-90935
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
Froxlor
Product
Froxlor
Classifications
CWE-285, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 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 <2.3.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Froxlor · Froxlorversion=0 <2.3.7

Published CVSS scores

4.3GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-285Improper Authorization
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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