CVE-2021-47900

Gila CMS versions prior to 2.0.0 contain a remote code execution vulnerability that allows unauthenticated attackers to execute arbitrary system commands through manipulated HTTP headers. Attackers can inject PHP code in the User-Agent header with shell_exec() to run system commands by sending crafted requests to the admin endpoint.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gilacms.com/
https://github.com/GilaCMS/gila
https://www.exploit-db.com/exploits/49412
https://www.vulncheck.com/advisories/gila-cms-remote-code-execution

Configurations

No configuration.

History

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) Las versiones de Gila CMS anteriores a la 2.0.0 contienen una vulnerabilidad de ejecución remota de código que permite a atacantes no autenticados ejecutar comandos de sistema arbitrarios a través de encabezados HTTP manipulados. Los atacantes pueden inyectar código PHP en el encabezado User-Agent con shell_exec() para ejecutar comandos de sistema enviando solicitudes manipuladas al endpoint de administración.

27 Jan 2026, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-27 16:16

Updated : 2026-06-17 04:18

NVD link : CVE-2021-47900

Mitre link : CVE-2021-47900

CVE.ORG link : CVE-2021-47900

JSON object : View

Products Affected

No product.

CWE

CWE-98

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')

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