CVE-2018-25332

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.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - disclosure@vulncheck.com

Published

2026-05-17

Last modified

2026-05-18

Weaknesses

CWE-306

Affected products

• Gitbucket (Gitbucket)
• Gitbucket (Jenkins)

References

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