PT-2026-39517 · Textpattern · Textpattern Cms

Published 2026-05-10 · Updated 2026-05-10 · CVE-2021-47943

Mitre

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Exploit

Fix

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2021-47943

Affected Products

Textpattern Cms

References · 4

• 🔥 https://exploit-db.com/exploits/50415 · Exploit
• 🔥 https://exploit-db.com/exploits/49996 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-47943 · Security Note
• https://vulncheck.com/advisories/textpattern-cms-remote-code-execution-via-file-upload · Note