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CVE WatchNov 3, 2026

CVE-2026-121434

Froxlor 2.3.0 before 2.3.15 contains a missing authorization check in the Certificates.add and Certificates.update API commands, which do no

CVSS

5.4

Medium

EPSS

—

KEV

—

Exploit Today

—

0-100

Published: Nov 3, 2026 · Last modified: Nov 3, 2026 · CWE-862

EPSS · 30d

Not enough EPSS history yet.

Technical description

Froxlor 2.3.0 before 2.3.15 contains a missing authorization check in the Certificates.add and Certificates.update API commands, which do not verify whether a domain's certificate is Let's Encrypt-managed. Customers with API access can overwrite the managed certificate and private key with an attacker-chosen pair, which a REBUILD_VHOST task deploys to the webserver, breaking HTTPS and desynchronizing ACME automation.

Official references
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