CVE-2026-25855
HIGHOpenBullet2 0.3.2 Authenticated RCE via FileProxySource Script Upload
Title source: cnaDescription
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.
References (2)
Core 2
Core References
Exploit technical-description
exploit
https://hackernoon.com/one-empty-header-to-admin-how-an-auth-bypass-breaks-openbullet2
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/openbullet2-authenticated-rce-via-fileproxysource-script-upload
Scores
CVSS v3
8.8
EPSS
0.0108
EPSS Percentile
60.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-78
Status
published
Products (1)
openbullet/openbullet2
0.2.5 - 0.3.2
Published
Jun 08, 2026
Tracked Since
Jun 08, 2026