CVE-2021-47943
HIGH EPSS 45.1%
Published May 10, 20261mo ago · Modified Jun 17, 20261w ago
8.7 CVSS 4.0
Published May 10, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago
Description
TextPattern CMS 4.8.7 contains a remote code execution vulnerability that allows authenticated attackers to execute arbitrary commands by uploading malicious PHP files through the file upload functionality. Attackers can upload a PHP shell via the Files section in the content area and execute commands by accessing the uploaded file at /textpattern/files/ with GET parameters passed to the system function.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
45.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-434 Unrestricted Upload of File with Dangerous Type Resource Mgmt
References 3
- exploit-db.com https://www.exploit-db.com/exploits/49996
- exploit-db.com https://www.exploit-db.com/exploits/50415
- vulncheck.com https://www.vulncheck.com/advisories/textpattern-cms-remote-code-execution-via-file-upload
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.