Vulnerability · Published Jan 27, 2026 · Assigned by VulnCheck
CVE-2021-47900Gila CMS < 2.0.0 - Remote Code Execution
Critical 9.8
In plain English
A critical-severity security flaw in Gila CMS from Gila CMS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.7%top 46.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
Weakness: CWE-98 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- ExploitDB-49412 exploit
- Official Vendor Homepage product
- Gila CMS GitHub Repository product
- VulnCheck Advisory: Gila CMS < 2.0.0 - Remote Code Execution third-party-advisory