CVE-2026-70408 PUBLISHED

Assigner: jpcert
Reserved: 10.08.2026 Published: 19.08.2026 Updated: 19.08.2026

An incorrect authorization vulnerability exists in acmailer, which may allow a user to create a sub-account that has administrative privileges.

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.8

CVSS 3.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Vendor	Extra Innovation Inc.
Product	acmailer CGI
Versions	Default: unaffected affected from 0 to 4.1.2 (excl.)

Vendor	Extra Innovation Inc.
Product	acmailer DB
Versions	Default: unaffected affected from 0 to 1.2.2 (excl.)