Is CVE-2023-33386 actively exploited?

No active exploitation of CVE-2023-33386 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-33386 be exploited remotely?

Yes. CVE-2023-33386 is exploitable remotely over the network (CVSS attack vector: Network).

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

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

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CRITICAL

CVE-2023-33386

CWE-434Published: June 5, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

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

NVD Source

Risk Analysis

MarsCTF 1.2.1 contains an arbitrary file upload vulnerability within its background attachment interface. With a CVSS score of 9.8, this remotely exploitable flaw poses a critical risk to the system.

There is no known public exploit for this vulnerability, and it is not currently in the CISA KEV catalog.

Recommended Action

Administrators should update to a newer version of MarsCTF or restrict access to the background attachment interface.

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-2023-33386 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.