VULNERABILITY INTELLIGENCE
CVE-2021-47888
CVSS score8.7 HIGH
EPSS probability0.71%
CISA KEVNot currently listed
Published2026-01-23
Last modified2026-06-17
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
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.
Weakness classification
- CWE-434: Unrestricted Upload of File with Dangerous Type