CVE Feed

    Dashboard / CVE / CVE-2021-47943

    CVE-2021-47943

    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:May 10, 2026
    Last Modified:May 11, 2026
    EPS:May 10, 2026
    EPSS Score:0.00238
    CVSS Score:8.8

    Affected Products

    Vendor
    Textpattern
    Product
    Textpattern

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs

    Related CVEs

    CVE-2021-47976 (CVSS 8.7) — TextPattern CMS 4.9.0-dev contains a remote code execution vulnerability that allows authenticated attackers t…
    CVE-2026-30452 (CVSS 6.5) — Textpattern CMS 4.9.0 contains a Broken Access Control vulnerability in the article management system that all…
    CVE-2026-5344 (CVSS 2.1) — A security vulnerability has been detected in Textpattern up to 4.9.1. Affected by this vulnerability is the f…
    CVE-2026-32986 (CVSS 5.1) — Textpattern CMS version 4.9.0 contains a second-order cross-site scripting vulnerability that allows attackers…
    CVE-2021-47888 (CVSS 8.7) — Textpattern versions prior to 4.8.3 contain an authenticated remote code execution vulnerability that allows l…
    CVE-2023-53911 (CVSS 5.1) — Textpattern CMS 4.8.8 contains a stored cross-site scripting vulnerability in the article excerpt field that a…
    CVE-2023-50038 (CVSS 8.8) — There is an arbitrary file upload vulnerability in the background of textpattern cms v4.8.8, which leads to th…
    CVE-2023-36220 (CVSS 7.2) — Directory Traversal vulnerability in Textpattern CMS v4.8.8 allows a remote authenticated attacker to execute …
    CVE-2023-24269 (CVSS 8.8) — An arbitrary file upload vulnerability in the plugin upload function of Textpattern v4.8.8 allows attackers to…
    CVE-2023-26852 (CVSS 7.2) — An arbitrary file upload vulnerability in the upload plugin of Textpattern v4.8.8 and below allows attackers t…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High