nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2021-47888 CVE-2021-47888
HIGH
Textpattern 4.8.3 - Remote code execution
Record summary
CVE-2021-47888 has a selected CVSS score of 8.7 (high); EIP currently links 1 catalogued exploit.
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.
Description source: CVE List
Exploitation context
Available material
- Catalogued exploits
- 1
CISA SSVC decision
ExploitationPoC
AutomatableNo
Technical impactTotal
CISA Coordinator · SSVC 2.0.3 · Evaluated Jan 23, 2026 · Source: CVE List
Affected products and versions
1| Product | Source | Version range | Status |
|---|---|---|---|
| CVE List | 4.8.3 | affected |
Proofs of concept
1Catalogued exploits
ExploitDBTextpattern 4.8.3 - Remote code execution (Authenticated) (2)ExploitDB exploitby Ricardo RuizNot analyzed1 file
References
5Official Vendor Homepageproduct
https://textpattern.com/ Textpattern Software Download Pageproduct
https://textpattern.com/start ExploitDB-49620exploit
https://www.exploit-db.com/exploits/49620 VulnCheck Advisory: Textpattern 4.8.3 - Remote code executionThird-party advisory
https://www.vulncheck.com/advisories/textpattern-remote-code-execution