Unauthenticated OS command execution via unsanitized id parameter
Published Jul 1, 2026 · Updated Jul 1, 2026
OS command injection in The Guardian Language System allows remote attackers to execute arbitrary OS commands through the speech.php endpoint. At line 18, speech.php concatenates the unvalidated id GET parameter into a command string passed to PHP exec(), so shell metacharacters become executable syntax. No authentication or user interaction is required; successful exploitation runs commands with the Apache HTTP Server process's privileges and returns no command output in the HTTP response.
Summary
What happened
OS command injection in The Guardian Language System allows remote attackers to execute arbitrary OS commands through the speech.php endpoint. At line 18, speech.php concatenates the unvalidated id GET parameter into a command string passed to PHP exec(), so shell metacharacters become executable syntax. No authentication or user interaction is required; successful exploitation runs commands with the Apache HTTP Server process's privileges and returns no command output in the HTTP response.
The record
- CVE
- CVE-2026-34109
- Published
- Jul 1, 2026
- Updated
- Jul 1, 2026
- Vendor
- The Guardian
- Product
- Language System
- Classifications
- CWE-78, T1059.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 1, 2026CVE publishedPublication date reported by the CVE source.
- Jul 1, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <=e42c395ec4b03fe62973a669c9209a673838b8a4
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- the_guardian_system_pocproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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