Is CVE-2023-27397 actively exploited?

No active exploitation of CVE-2023-27397 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-27397 be exploited remotely?

Yes. CVE-2023-27397 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-27397?

CVE-2023-27397 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-27397

CWE-434Published: May 23, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

NVD Source

Risk Analysis

MicroEngine Mailform versions 1.1.0 through 1.1.8 allow unrestricted file uploads, which can lead to remote code execution if the server save option is enabled. This critical vulnerability allows attackers to upload dangerous file types.

No public exploit is known, but the vulnerability is remotely exploitable with low complexity.

Recommended Action

Upgrade to the latest version of Mailform. Implement strict validation on all uploaded files to ensure only permitted file types are accepted.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-27397 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.