CVE-2026-30309

| EUVD-2026-17421 HIGH
2026-03-31 mitre GHSA-cm3j-25qj-ffhm
7.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 31, 2026 - 14:30 vuln.today
EUVD ID Assigned
Mar 31, 2026 - 14:30 euvd
EUVD-2026-17421
CVE Published
Mar 31, 2026 - 00:00 nvd
HIGH 7.8

Description

InfCode's terminal auto-execution module contains a critical command filtering vulnerability that renders its blacklist security mechanism completely ineffective. The predefined blocklist fails to cover native high-risk commands in Windows PowerShell (such as powershell), and the matching algorithm lacks dynamic semantic parsing unable to recognize string concatenation, variable assignment, or double-quote interpolation in Shell syntax. Malicious commands can bypass interception through simple syntax obfuscation. An attacker can construct a file containing malicious instructions for remote code injection. When a user imports and views such a file in the IDE, the Agent executes dangerous PowerShell commands outside the blacklist without user confirmation, resulting in arbitrary command execution or sensitive data leakage.

Analysis

InfCode's terminal auto-execution module fails to properly validate PowerShell commands due to an ineffective blacklist and lack of semantic parsing, allowing attackers to bypass command filtering through syntax obfuscation. When a user imports a specially crafted file into the IDE, the Agent executes arbitrary PowerShell commands without user confirmation, leading to remote code execution or sensitive data exfiltration. …

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Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +39
POC: 0

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CVE-2026-30309 vulnerability details – vuln.today

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