Vulnerabilidades do Textpattern TextPattern CMS

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CVEs publicadas que afetam Textpattern TextPattern CMS: 3 registro(s), com versões afetadas e correções.

CVE-2021-47976 Alta · 8.8 CWE-352 16/05/2026

TextPattern CMS 4.9.0-dev Authenticated Remote Code Execution via Plugin Upload

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.

CVE-2021-47943 Alta · 8.8 CWE-434 10/05/2026

TextPattern CMS 4.8.7 Remote Code Execution via File Upload

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.

CVE-2026-32986 Média · 6.1 CWE-79 20/03/2026

Textpattern CMS 4.9.0: Second-Order XSS via Atom Feed Injection

Textpattern CMS version 4.9.0 contains a second-order cross-site scripting vulnerability that allows attackers to inject malicious scripts by exploiting improper sanitization of user-supplied input in Atom feed XML elements. Attackers can embed unescaped payloads in parameters such as category that are reflected into Atom fields like and , which execute as JavaScript when feed readers or CMS aggregators consume the feed and insert content into the DOM using unsafe methods.