Remote Code Execution Vulnerability in Gila CMS by Gila CMS
CVE-2021-47900

9.3CRITICAL

Key Information:

Vendor

Gila Cms

Status
Gila Cms
Vendor
CVE Published:
27 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47900?

A remote code execution vulnerability exists in Gila CMS versions prior to 2.0.0, enabling unauthenticated attackers to execute arbitrary system commands by injecting PHP code into the User-Agent HTTP header. This exploitation is facilitated through crafted requests directed at the admin endpoint, utilizing the shell_exec() function, posing serious security risks for affected installations.

Affected Version(s)

Gila CMS 0 < 2.0.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47900 - Proof of Concept

References

https://www.exploit-db.com/exploits/49412
exploit
https://gilacms.com/
product
https://github.com/GilaCMS/gila
product

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Enesdex
.