CVE-2018-25332

CRITICAL 9.8

GitBucket 4.23.1 Unauthenticated Remote Code Execution

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

GitBucket 4.23.1 contains an unauthenticated remote code execution vulnerability that allows attackers to execute arbitrary commands by exploiting weak secret token generation and insecure file upload functionality. Attackers can brute-force the Blowfish encryption key, upload a malicious JAR plugin via the git-lfs endpoint, and execute system commands through an exposed exploit endpoint.

CWE	CWE-306
Vendor	gitbucket
Product	gitbucket
Published	May 17, 2026
Last Updated	May 18, 2026

Stay Ahead of the Next One

Get instant alerts for gitbucket gitbucket

Be the first to know when new critical vulnerabilities affecting gitbucket gitbucket are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

gitbucket / GitBucket

4.23.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/44668 security.szurek.pl: https://security.szurek.pl/ github.com: https://github.com/gitbucket/gitbucket vulncheck.com: https://www.vulncheck.com/advisories/gitbucket-unauthenticated-remote-code-execution

Credits

Kacper Szurek