What’s Vulnerable › Vulnerabilities

CVE-2023-33386

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-06-05 · updated 2026-06-17
• Weakness: CWE-434

Description

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

Affected products

• Marsctf Project Marsctf: 1.2.1

References

• https://github.com/b1ackc4t/MarsCTF/blob/V1.2.1/src/main/java/com/b1ackc4t/marsctfserver/service/impl/CTFFileServiceImpl.java#L46
• https://github.com/b1ackc4t/MarsCTF/issues/10
• https://github.com/b1ackc4t/MarsCTF/blob/V1.2.1/src/main/java/com/b1ackc4t/marsctfserver/service/impl/CTFFileServiceImpl.java#L46
• https://github.com/b1ackc4t/MarsCTF/issues/10

Get alerted when CVE-2023-33386 or the next vulnerability affects your stack