Auth bypass in Froxlor
CVE-2026-90935
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (22.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/froxlor/froxlor/security/advisories/GHSA-q4rm-m6xh-5pv7 (vendor-advisory)
- www.vulncheck.com/advisories/froxlor-before-2.3.7-authorization-bypass-via-mysq… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-90935?
- CVE-2026-90935 is a medium-severity vulnerability in Froxlor, classified under Improper Authorization. CVSS score: 4.3/10. Published 2026-09-14.
- How severe is CVE-2026-90935?
- Medium severity. CVSS v3 base score is 4.3 out of 10.