CVE-2021-47900
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductGila CMS
PublishedJan 27, 2026
First seenJan 27, 2026
Weakness typeCWE-98CWE-98
How to fix
Update
- Gila CMS Gila CMS2.0.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Gila CMS Gila CMS | v < 2.0.0 | 2.0.0 |
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