Vulnerability · Published Sep 14, 2026 · Assigned by VulnCheck

CVE-2026-90935Froxlor before 2.3.7 Authorization Bypass via Mysqls.add API

Medium 4.3

In plain English

A medium-severity security flaw in froxlor from froxlor. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 77.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Froxlor before 2.3.7 fails to validate the mysql_server parameter against a customer's allowed_mysqlserver allowlist in the Mysqls.add API command. Attackers can supply a disallowed server index to create MySQL databases and users on forbidden servers, bypassing per-customer access controls.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	froxlor/froxlor	2.3.7	GHSA-q4rm-m6xh-5pv7

Affected products (as reported)

Vendor	Product	Versions
froxlor	froxlor	0 – before 2.3.7

Weakness: CWE-285 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References

GitHub Security Advisory (GHSA-q4rm-m6xh-5pv7) vendor-advisory
VulnCheck Advisory: Froxlor before 2.3.7 Authorization Bypass via Mysqls.add API third-party-advisory