CVE-2021-47734
High
Description
CMSimple 5.4 contains an authenticated local file inclusion vulnerability that allows remote attackers to manipulate PHP session files and execute arbitrary code. Attackers can leverage the vulnerability by changing the functions file path and uploading malicious PHP code through session file upload mechanisms.
SeverityHigh
CVSS7.8
Exploit probability56. percentile0.8%
Product
Cmsimple
PublishedDec 23, 2025
First seenDec 23, 2025
Weakness typeCWE-98CWE-98
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cmsimple cmsimple | 5.4 | — |
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