VULNERABILITY INTELLIGENCE
CVE-2021-47976
CVSS score8.8 HIGH
EPSS probability0.32%
CISA KEVNot currently listed
Published2026-05-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
TextPattern CMS 4.9.0-dev contains a remote code execution vulnerability that allows authenticated attackers to upload arbitrary PHP files by exploiting the plugin upload functionality. Attackers can authenticate, retrieve a CSRF token from the plugin event page, and upload malicious PHP files to the textpattern/tmp/ directory for code execution.
Weakness classification
- disclosure@vulncheck.com: CWE-352