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Vulnerability record · CVE-2021-40189 · published 11 October 2021

CVE-2021-40189: Php-fusion phpfusion unrestricted file upload vulnerability

Php Fusion · Phpfusion

PHPFusion 9.03.110 is affected by a remote code execution vulnerability. The theme function will extract a file to "webroot/themes/{Theme Folder], where an attacker can access and execute arbitrary code.

7.2 CVSS 3.1 High EPSS 1.8% · top 22.4% CWE-434 · Unrestricted file upload
7.2CVSS 3.1 base score, v2 6.5
1.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

PHPFusion 9.03.110 is affected by a remote code execution vulnerability. The theme function will extract a file to "webroot/themes/{Theme Folder], where an attacker can access and execute arbitrary code.

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

Affected products

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

References

LinkTags
https://github.com/PHPFusion/PHPFusion/issues/2374 ExploitIssue TrackingThird Party Advisory
https://github.com/PHPFusion/PHPFusion/issues/2374 ExploitIssue TrackingThird Party Advisory

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Related vulnerabilities

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

9.6CVE-2020-23754Php-fusion phpfusion cross-site scripting vulnerabilityCross Site Scripting (XSS) vulnerability in infusions/member_poll_panel/poll_admin.php in PHP-Fusion 9.03.50, allows attackers to execute arbitrary c…EPSS 1.6%8.8CVE-2023-2453Php-fusion phpfusion inclusion from untrusted sphere vulnerabilityThere is insufficient sanitization of tainted file names that are directly concatenated with a path that is subsequently passed to a ‘require_once’ s…EPSS 0.89%8.8CVE-2022-3152Php-fusion phpfusion improper authentication vulnerabilityUnverified Password Change in GitHub repository phpfusion/phpfusion prior to 9.10.20.EPSS 0.88%8.6CVE-2020-37137Php-fusion phpfusion code injection vulnerabilityPHP-Fusion 9.03.50 contains a remote code execution vulnerability in the 'add_panel_form()' function that allows attackers to execute arbitrary code …EPSS 0.58%7.2CVE-2021-40188Php-fusion phpfusion unrestricted file upload vulnerabilityPHPFusion 9.03.110 is affected by an arbitrary file upload vulnerability. The File Manager function in admin panel does not filter all PHP extensions…EPSS 1.3%6.1CVE-2014-8597Php-fusion phpfusion cross-site scripting vulnerabilityA reflected cross-site scripting (XSS) vulnerability in PHP-Fusion 7.02.07 allows remote attackers to inject arbitrary web script or HTML via the sta…EPSS 0.81%6.1CVE-2021-40541Php-fusion phpfusion cross-site scripting vulnerabilityPHPFusion 9.03.110 is affected by cross-site scripting (XSS) in the preg patterns filter html tag without "//" in descript() function An authenticate…EPSS 0.57%6.1CVE-2021-28280Php-fusion phpfusion cross-site scripting vulnerabilityCSRF + Cross-site scripting (XSS) vulnerability in search.php in PHPFusion 9.03.110 allows remote attackers to inject arbitrary web script or HTMLEPSS 0.70%

Source: NIST National Vulnerability Database (record CVE-2021-40189), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.