CVE-2026-50186: high-severity vulnerability in RARgames 4gaBoards
4gaBoards: Path Traversal leading to Arbitrary File Read and Deletion in Board Export
Published · Updated
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 0.6%
exploitation probability
0.6%top 53% of all CVEs
observed exploitation
nono source reports it
4gaBoards is a boards system for realtime project management. Prior to 3.3.8, 4gaBoards allows an authenticated project manager to supply traversal sequences in the filename parameter of GET /exports/:id/:filename. In server/api/controllers/boards/download.js, the decoded inputs.filename value is passed to path.join() beneath private/exports/<user_id>/ without containment validation. A crafted value such as ../ can select an arbitrary file readable by the server process, and the file is returned to the attacker. The fileStream close handler then passes the same path to fs.unlink(), deleting the selected file and potentially causing data loss or denial of service. This issue is fixed in version 3.3.8.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
RARgames · 4gaBoardsRelated CVEs — RARgames 4gaBoards
In the same product, most dangerous first.
CVE-2026-50191HIGH4gaBoards: Pre-Account Takeover via SSO Email LinkageEPSS 0.5%CVE-2026-41419HIGH4ga Boards: Import Path Traversal Leads to Arbitrary File ReadEPSS 0.5%CVE-2026-53959MEDIUM4gaBoards: Mass Information Disclosure (Internal PII Leakage) on /api/users to any authenticated userEPSS 0.4%CVE-2026-53958HIGH4gaBoards: SSO Pre-Account Takeover / Hijacking via Mass AssignmentEPSS 0.4%CVE-2026-41418MEDIUM4ga Boards: User Enumeration via Timing Side-Channel in Authentication EndpointEPSS 0.3%