CVE-2023-33386

CRITICALNVD 9.89.8—Elevated

9.8

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

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 32.2%
KEV: Not listed

Published

June 5, 2023

Last Modified

January 8, 2025

References (4)

cve@mitrehttps://github.com/b1ackc4t/MarsCTF/blob/V1.2.1/src/main/java/com/b1ackc4t/marsctfserver/service/impl/CTFFileServiceImpl.java#L46
cve@mitrehttps://github.com/b1ackc4t/MarsCTF/issues/10
af854a3a-2127-422b-91ae-364da2661108https://github.com/b1ackc4t/MarsCTF/blob/V1.2.1/src/main/java/com/b1ackc4t/marsctfserver/service/impl/CTFFileServiceImpl.java#L46
af854a3a-2127-422b-91ae-364da2661108https://github.com/b1ackc4t/MarsCTF/issues/10

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-434Unrestricted Upload of File with Dangerous Type

Data Freshness Timeline

(refreshed 16× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2023-33386?

CVE-2023-33386 is a critical vulnerability published on June 5, 2023. MarsCTF 1.2.1 has an arbitrary file upload vulnerability in the interface for uploading attachments in the background.

When was CVE-2023-33386 disclosed?

CVE-2023-33386 was first published in the National Vulnerability Database on June 5, 2023, with the most recent update on January 8, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-33386 actively exploited?

CVE-2023-33386 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

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

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

How do I remediate CVE-2023-33386?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-33386, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2023-33386

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-33386?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)