High severity8.8NVD Advisory· Published Jan 23, 2026· Updated Apr 15, 2026
CVE-2021-47888
CVE-2021-47888
Description
Textpattern versions prior to 4.8.3 contain an authenticated remote code execution vulnerability that allows logged-in users to upload malicious PHP files. Attackers can upload a PHP file with a shell command execution payload and execute arbitrary commands by accessing the uploaded file through a specific URL parameter.
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Affected products
1- Range: <4.8.3
Patches
Vulnerability mechanics
References
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