CVE-2021-47943
published 2026-05-10CVE-2021-47943: TextPattern CMS 4.8.7 contains a remote code execution vulnerability that allows authenticated attackers to execute arbitrary commands by uploading malicious…
PriorityP359high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EPSS
0.62%
45.0th percentile
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.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| textpattern | textpattern_cms | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv4.08.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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VulDB
Textpattern CMS 4.8.7 File Section /textpattern/files/ system unrestricted upload (Exploit 49996 / EDB-49996)
vuldb·2026-05-10·CVSS 8.7
CVE-2021-47943 [HIGH] Textpattern CMS 4.8.7 File Section /textpattern/files/ system unrestricted upload (Exploit 49996 / EDB-49996)
A vulnerability classified as critical was found in Textpattern CMS 4.8.7. Affected by this vulnerability is the function system of the file /textpattern/files/ of the component File Section. Such manipulation leads to unrestricted upload.
This vulnerability is documented as CVE-2021-47943. The attack can be executed remotely. Additionally, an exploit exists.
GHSA
GHSA-3fw2-x5r9-x34j: TextPattern CMS 4
ghsa_unreviewed·2026-05-10
CVE-2021-47943 [HIGH] CWE-434 GHSA-3fw2-x5r9-x34j: TextPattern CMS 4
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-05-10
Published