CVE-2026-25855
HIGH EPSS 42.9%
Published Jun 8, 20263w ago · Modified Jun 17, 20262w ago
8.7 CVSS 4.0
Published Jun 8, 2026 3w ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
42.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-78 OS Command Injection Injection
References 2
- hackernoon.com https://hackernoon.com/one-empty-header-to-admin-how-an-auth-bypass-breaks-openbullet2
- vulncheck.com https://www.vulncheck.com/advisories/openbullet2-authenticated-rce-via-fileproxysource-script-upload
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.