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CRITICAL

CVE-2023-33386

CVSS v3

9.8

CRITICAL

EPSS Score

1.0 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

MarsCTF 1.2.1 has an arbitrary file upload vulnerability in the interface for uploading attachments in the background.

Technical details

Published
2023-06-05

Frequently asked questions

What is CVE-2023-33386?

MarsCTF 1.2.1 has an arbitrary file upload vulnerability in the interface for uploading attachments in the background.

Is CVE-2023-33386 actively exploited?

Active exploitation of CVE-2023-33386 has not been confirmed. Its EPSS score was 1.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-33386?

CVE-2023-33386 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2023-33386 affecting your environment?

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