CVE-2026-66358 — MEDIUM (6.1)

Vulnerability Description

A cross-site scripting vulnerability exists in acmailer, which may allow an attacker to execute an arbitrary script.

CVSS Score

6.1

MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-79

References

https://jvn.jp/en/jp/JVN47716829/
https://www.acmailer.jp/info/de.cgi?id=119

FAQ

What is CVE-2026-66358?

CVE-2026-66358 is a vulnerability with a CVSS score of 6.1 (MEDIUM). A cross-site scripting vulnerability exists in acmailer, which may allow an attacker to execute an arbitrary script.

How severe is CVE-2026-66358?

CVE-2026-66358 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-66358?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.