CVE-2026-25855
OpenBullet2 0.3.2 Authenticated RCE via FileProxySource Script Upload
- State
- Published
- Severity
- 8.7 High
- Published
- Jun 8, 2026
- Updated
- Jul 14, 2026
- Reserved
- Feb 6, 2026
Description
OpenBullet2 through version 0.3.2 contains a remote code execution vulnerability that allows authenticated users to execute arbitrary commands by uploading script files (.bat.ps1.sh) through the FileProxySource proxy loading feature. Attackers can upload malicious script files as proxy sources, causing the server to execute the scripts and return output as proxy lines, resulting in arbitrary command execution on the host as the process user.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Products
| Product | Versions |
|---|---|
openbullet2openbullet |
|
References
- https://hackernoon.com/one-empty-header-to-admin-how-an-auth-bypass-breaks-openbullet2technical-descriptionexploit
- https://www.vulncheck.com/advisories/openbullet2-authenticated-rce-via-fileproxysource-script-uploadthird-party-advisory
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