CVE-2021-47888

8.8 HIGH
Published: January 23, 2026 Modified: January 26, 2026
View on NVD

Description

Textpattern versions prior to 4.8.3 contain an authenticated remote code execution vulnerability that allows logged-in users to upload malicious PHP files. Attackers can upload a PHP file with a shell command execution payload and execute arbitrary commands by accessing the uploaded file through a specific URL parameter.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://textpattern.com/
Source: disclosure@vulncheck.com
https://textpattern.com/start
Source: disclosure@vulncheck.com
https://www.exploit-db.com/exploits/49620
Source: disclosure@vulncheck.com
https://www.exploit-db.com/exploits/49620
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

5 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.8 / 10.0
EPSS (Exploit Probability)
0.5%
63th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)