Vulnerability in Gila Cms
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (51.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.001
Affected products
- Gila Cms — versions 0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/49412 (exploit)
- gilacms.com/ (product)
- github.com/GilaCMS/gila (product)
- www.vulncheck.com/advisories/gila-cms-remote-code-execution (third-party-advisory)
Frequently asked questions
- What is CVE-2021-47900?
- CVE-2021-47900 is a critical-severity vulnerability in Gila Cms, classified under PHP Remote File Inclusion. CVSS score: 9.8/10. Published 2026-01-27.
- How severe is CVE-2021-47900?
- Critical severity. CVSS v3 base score is 9.8 out of 10.