Information disclosure in Froxlor
CVE-2026-100710
Froxlor through 2.3.10 does not filter sensitive columns from API responses: Domains::get(), Domains::listing(), SubDomains::get(), and the admin branch of SubDomains::listing() perform a wildcard SELECT over the panel_domains table and return the row unmodified, including the panel_domains.dkim_privkey field. An authenticated, non-superadmin admin holding the delegated customers_see_all flag can therefore read the DKIM private signing keys of domains belonging to other tenants via Domains.get, Domains.listing, SubDomains.get, or SubDomains.listing, with a single listing call disclosing the key of every visible domain. The disclosed keys allow an attacker to sign email that passes DKIM verification and DMARC alignment for the affected domains. This is a follow-on to an incomplete fix that stripped password and data_2fa but not dkim_privkey. The issue is fixed in 2.3.12.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (15.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-79gx-h528-j9xf) (vendor-advisory)
- VulnCheck Advisory: Froxlor before 2.3.12 DKIM Private Key Disclosure via API (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100710?
- CVE-2026-100710 is a medium-severity vulnerability in Froxlor, classified under Information Disclosure. CVSS score: 4.9/10. Published 2026-09-26.
- How severe is CVE-2026-100710?
- Medium severity. CVSS v3 base score is 4.9 out of 10.