CVE-2018-19420
low-risk
Published 2018-11-21
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), because of admin/upload-uploadify.php, and validate_safe_file in admin/inc/security_functions.php.
Do I need to act?
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0.22% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.8/10
Low
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (2)
23
/ 100
low-risk
Severity
17/34 · Moderate
Exploitability
1/34 · Minimal
Exposure
5/34 · Minimal