PT-2026-41462 · Unknown · Textpattern Cms

Mevlüt Akçam · Published 2026-05-16 · Updated 2026-05-17 · CVE-2021-47976

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions TextPattern CMS version 4.9.0-dev

Description Authenticated attackers can achieve remote code execution by exploiting the plugin upload functionality. The process involves authenticating, retrieving a CSRF token from the plugin event page, and uploading malicious PHP files to the 'textpattern/tmp/' directory.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2021-47976

Affected Products

Textpattern Cms

References · 7

• 🔥 https://exploit-db.com/exploits/50095 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-47976 · Security Note
• https://github.com/textpattern/textpattern · Note
• https://textpattern.com · Note
• https://vulncheck.com/advisories/textpattern-cms-dev-authenticated-remote-code-execution-via-plugin-upload · Note
• https://t.me/CVEtracker/54016 · Telegram Post
• https://twitter.com/CVEnew/status/2055866569159307590 · Twitter Post