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CVE-2021-47900

CRITICAL Exploitation: PoC
9.8
CVSS 3.1
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.

Metadata

CVE ID
CVE-2021-47900
State
PUBLISHED
Assigner
VulnCheck
Reserved
2026-01-18 12:35 UTC
Published
2026-01-27 15:23 UTC
Last updated
2026-03-05 01:29 UTC
Primary CWE
CWE-98
Improper Control of Filename for Include/Require Statement i…
Vendor / Product
Gila CMS / Gila CMS
Sources
cve.org  ·  NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
yes
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
Gila CMS Gila CMS — 0 < 2.0.0
Weakness (CWE)
CWESourceDescription
CWE-98 cna Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')
CVSS scores (2)
ScoreSeverityVersionSourceVector
9.8 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3 CRITICAL 4.0 cna 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
References (4)
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