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Vulnerability record · CVE-2021-44082 · published 29 March 2022

CVE-2021-44082: Textpattern cross-site scripting vulnerability

Textpattern · Textpattern

textpattern 4.8.7 is vulnerable to Cross Site Scripting (XSS) via /textpattern/index.php,Body. A remote and unauthenticated attacker can use XSS to trigger remote code execution by uploading a webshell. To do so they must first steal the CSRF token before submitting a file upload request.

8.3 CVSS 3.1 High EPSS 3.0% · top 13.0% CWE-79 · Cross-site scripting
8.3CVSS 3.1 base score, v2 5.1
3.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

textpattern 4.8.7 is vulnerable to Cross Site Scripting (XSS) via /textpattern/index.php,Body. A remote and unauthenticated attacker can use XSS to trigger remote code execution by uploading a webshell. To do so they must first steal the CSRF token before submitting a file upload request.

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://pentest.co.uk/labs/leveraging-xss-to-get-rce-in-textpattern/ ExploitThird Party Advisory
https://www.cornerpirate.com Not Applicable
https://www.pentest.co.uk Third Party Advisory
https://pentest.co.uk/labs/leveraging-xss-to-get-rce-in-textpattern/ ExploitThird Party Advisory
https://www.cornerpirate.com Not Applicable
https://www.pentest.co.uk Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-19510Textpattern unrestricted file upload vulnerabilityTextpattern 4.7.3 contains an aribtrary file load via the file_insert function in include/txp_file.php.EPSS 1.5%9.8CVE-2018-7474Textpattern sql injection vulnerabilityAn issue was discovered in Textpattern CMS 4.6.2 and earlier. It is possible to inject SQL code in the variable "qty" on the page index.php.EPSS 6.2%8.8CVE-2023-50038Textpattern unrestricted file upload vulnerabilityThere is an arbitrary file upload vulnerability in the background of textpattern cms v4.8.8, which leads to the loss of server permissions.EPSS 0.81%8.8CVE-2023-24269Textpattern unrestricted file upload vulnerabilityAn arbitrary file upload vulnerability in the plugin upload function of Textpattern v4.8.8 allows attackers to execute arbitrary code via a crafted Z…EPSS 1.1%8.8CVE-2020-29458Textpattern cross-site request forgery vulnerabilityTextpattern CMS 4.6.2 allows CSRF via the prefs subsystem.EPSS 0.66%7.5CVE-2018-1000090Textpattern xml external entity (xxe) vulnerabilitytextpattern version version 4.6.2 contains a XML Injection vulnerability in Import XML feature that can result in Denial of service in context to the…EPSS 1.3%7.5CVE-2010-3205Textpattern code injection vulnerabilityPHP remote file inclusion vulnerability in index.php in Textpattern CMS 4.2.0 allows remote attackers to execute arbitrary PHP code via a URL in the …EPSS 2.9%7.5CVE-2006-5615Textpattern vulnerabilityPHP remote file inclusion vulnerability in publish.php in Textpattern 1.19, when register_globals is enabled, allows remote attackers to execute arbi…EPSS 2.6%

Source: NIST National Vulnerability Database (record CVE-2021-44082), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.