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VulnerabilityPublished

CVE-2026-30309: OS Command Injection

Source CVE Database V5

0

Not known to be exploited · CVSS 7.8 High.

Data as of 26 Oct 2026, 13:47 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 22% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 31 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

To mitigate CVE-2026-30309, organizations should immediately disable the terminal auto-execution feature in InfCode's IDE until a vendor patch is available. Avoid importing or opening files from untrusted sources in the IDE. Implement application whitelisting and restrict PowerShell execution policies to limit unauthorized script execution. Employ endpoint detection and response (EDR) solutions capable of detecting anomalous PowerShell activity and command obfuscation techniques. Network segmentation should be used to isolate development environments from critical infrastructure. Educate developers and users about the risks of opening untrusted files and the importance of verifying file origins. Monitor logs for unusual PowerShell command executions and investigate any suspicious activity promptly. Engage with InfCode for updates and patches addressing this vulnerability. Consider using alternative IDEs or tools with more robust command filtering mechanisms until this issue is resolved. Finally, conduct regular security assessments of development tools to identify similar risks proactively.

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.

References

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