CVE-2023-34207: Unrestricted upload of file with dangerous type vulnerability in create template function in EasyUse MailHunte

Q: How do I fix CVE-2023-34207?

mailhunter ultimate: upgrade to newer than 2023. Exact commands for each OS are on this page.

Q: Is CVE-2023-34207 being exploited?

CVE-2023-34207 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-34207 affect?

CVE-2023-34207 affects mailhunter ultimate. Severity is critical (CVSS 9.9). Unrestricted upload of file with dangerous type vulnerability in create template function in EasyUse MailHunter Ultimate 2023 and earlier allows remote authenticated users to perform arbitrary system commands with ‘NT Authority\SYSTEM‘ priv

Q: How urgent is CVE-2023-34207?

Priority 49/100. Critical severity

This month

CRITICAL 9.9UPGRADE

CVE-2023-34207 is a critical-severity flaw (CVSS 9.9) affecting mailhunter ultimate. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unrestricted upload of file with dangerous type vulnerability in create template function in EasyUse MailHunter Ultimate 2023 and earlier allows remote authenticated users to perform arbitrary system commands with ‘NT Authority\SYSTEM‘ privilege via a crafted ZIP archive.

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	9.9 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-434
Published	2023-10-17
Last modified	2026-06-17

Publisher (CNA): ZUSO Advanced Research Team (ZUSO ART) · Vendor: easyuse

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-10-17 04:15 UTCPublished CVE record published
2026-06-17 06:03 UTCUpdated Record last modified

easyuse mailhunter ultimate UPGRADE

Affected: <= 2023

Fixed in: newer than 2023

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy mailhunter-ultimate || rpm -q mailhunter-ultimate || mailhunter-ultimate --version

2. UPGRADE to newer than 2023 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mailhunter-ultimate

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mailhunter-ultimate

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-34207?

mailhunter ultimate: upgrade to newer than 2023. Exact commands for each OS are on this page.

Is CVE-2023-34207 being exploited?

CVE-2023-34207 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-34207 affect?

CVE-2023-34207 affects mailhunter ultimate. Severity is critical (CVSS 9.9). Unrestricted upload of file with dangerous type vulnerability in create template function in EasyUse MailHunter Ultimate 2023 and earlier allows remote authenticated users to perform arbitrary system commands with ‘NT Authority\SYSTEM‘ priv

How urgent is CVE-2023-34207?

Priority 49/100. Critical severity

Related CVEs

CVE-2023-34210 HIGH 7.7 UPGRADE SQL Injection in create customer group function in EasyUse MailHunter Ultimate 2023 and earlier allow remote a
CVE-2023-34209 MEDIUM 5.0 UPGRADE Exposure of Sensitive System Information to an Unauthorized Control Sphere in create template function in Easy
CVE-2023-34208 MEDIUM 6.5 UPGRADE Path Traversal in create template function in EasyUse MailHunter Ultimate 2023 and earlier allow remote authen
CVE-2022-35223 CRITICAL 9.8 UPGRADE EasyUse MailHunter Ultimate’s cookie deserialization function has an inadequate validation vulnerability

References

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