CVE-2023-27397

Name: CVE-2023-27397
Creator: NVD / NIST
Published: 2023-05-23T02:15:09.57+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.92%

Last modified Jun 17, 2026

CVE-2023-27397 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Unrestricted upload of file with dangerous type exists in MicroEngine Mailform version 1.1.0 to 1.1.8. If the product's file upload function and server save option are enabled, a remote attacker may save an arbitrary file on the server and execute it.. EPSS estimates a 0.92% chance of exploitation in the next 30 days.

Description

Unrestricted upload of file with dangerous type exists in MicroEngine Mailform version 1.1.0 to 1.1.8. If the product's file upload function and server save option are enabled, a remote attacker may save an arbitrary file on the server and execute it.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.92%

55.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Microengine	Mailform	>= 1.1.0, < 1.1.9

References

https://jvn.jp/en/jp/JVN31701509/Third Party Advisory
https://microengine.jp/information/security_2023_05.htmlVendor Advisory
https://jvn.jp/en/jp/JVN31701509/Third Party Advisory
https://microengine.jp/information/security_2023_05.htmlVendor Advisory

Timeline

Published: May 23, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-27397?

How severe is CVE-2023-27397?

CVE-2023-27397 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.

How do I fix CVE-2023-27397?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-27397?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST