Description
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.
Published: 2026-05-10
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 11 May 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sun, 10 May 2026 13:00:00 +0000

Type Values Removed Values Added
Description 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.
Title TextPattern CMS 4.8.7 Remote Code Execution via File Upload
First Time appeared Textpattern
Textpattern textpattern
Weaknesses CWE-434
CPEs cpe:2.3:a:textpattern:textpattern:4.8.7:-:*:*:*:*:*:*
Vendors & Products Textpattern
Textpattern textpattern
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Textpattern Textpattern
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-11T15:17:45.607Z

Reserved: 2026-02-01T11:24:18.718Z

Link: CVE-2021-47943

cve-icon Vulnrichment

Updated: 2026-05-11T15:17:40.393Z

cve-icon NVD

Status : Deferred

Published: 2026-05-10T13:16:30.627

Modified: 2026-05-12T14:24:15.210

Link: CVE-2021-47943

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-10T15:30:14Z

Weaknesses