CVE-2026-67399

CVSS 9.3 (critical) · published 2026-09-14

Deserialization of untrusted data in WHMCS 9.0.0 before 9.0.8 and 8.0.0 before 8.13.7 allows remote attackers to execute arbitrary code.

Weakness: CWE-502

Source: NVD CVE-2026-67399

References

• https://help.whmcs.com/m/125386/l/2118034-cve-2026-67399-whmcs-security-update-2026-09-03

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