CVE-2026-121434

MEDIUM 5.4CVE-2026-121434 · Published 03/11/2026 · updated 07/11/2026

In short

CVE-2026-121434 is a MEDIUM (CVSS 5.4) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 0.16%, higher than 4.8% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

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.

References

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