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CVE-2021-47888

HIGH

8.8

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.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published1/23/2026

Last Modified1/26/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-434

References

https://textpattern.com/(disclosure@vulncheck.com)

https://textpattern.com/start(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/49620(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/textpattern-remote-code-execution(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/49620(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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