CVE-2021-47888

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://textpattern.com/
https://textpattern.com/start
https://www.exploit-db.com/exploits/49620
https://www.vulncheck.com/advisories/textpattern-remote-code-execution
https://www.exploit-db.com/exploits/49620

Configurations

No configuration.

History

23 Jan 2026, 22:16

Type	Values Removed	Values Added
References	~~() https://www.exploit-db.com/exploits/49620 -~~	() https://www.exploit-db.com/exploits/49620 -

23 Jan 2026, 17:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-23 17:15

Updated : 2026-01-26 15:03

NVD link : CVE-2021-47888

Mitre link : CVE-2021-47888

CVE.ORG link : CVE-2021-47888

JSON object : View

Products Affected

No product.

CWE

CWE-434

Unrestricted Upload of File with Dangerous Type

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