Arbitrary file upload in Get-simple Getsimple_cms
CVE-2018-19420
In GetSimpleCMS 3.3.15, admin/upload.php blocks .html uploads but there are several alternative cases in which HTML can be executed, such as a file with no extension or an unrecognized extension (e.g., the test or test.asdf filename), beca…
Vulnerability class: Unrestricted File Upload
EPSS: 0.008 (51.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.8 (Low). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N.
Affected products
- Get-simple Getsimple_cms — versions 3.3.15
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2018-19420?
- CVE-2018-19420 is a low-severity vulnerability in Get-simple Getsimple_cms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 3.8/10. Published 2018-11-21.
- How severe is CVE-2018-19420?
- Low severity. CVSS v3 base score is 3.8 out of 10.
- Is CVE-2018-19420 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.