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Vulnerability record · CVE-2020-11579 · published 3 September 2020

CVE-2020-11579: Chadhaajay phpkb missing authentication for critical function vulnerability

CChadhaajay · Phpkb

An issue was discovered in Chadha PHPKB 9.0 Enterprise Edition. installer/test-connection.php (part of the installation process) allows a remote unauthenticated attacker to disclose local files on hosts running PHP before 7.2.16, or on hosts where the MySQL ALLOW LOCAL DATA INFILE option is enabled.

7.5 CVSS 3.1 High EPSS 27% · top 2.0% CWE-306 · Missing authentication for critical function
7.5CVSS 3.1 base score, v2 5.0
27%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

An issue was discovered in Chadha PHPKB 9.0 Enterprise Edition. installer/test-connection.php (part of the installation process) allows a remote unauthenticated attacker to disclose local files on hosts running PHP before 7.2.16, or on hosts where the MySQL ALLOW LOCAL DATA INFILE option is enabled.

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

Affected products

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

References

LinkTags
https://github.com/ShielderSec/CVE-2020-11579 ExploitThird Party Advisory
https://shielder.it/ Third Party Advisory
https://www.phpkb.com Product
https://www.shielder.it/blog/mysql-and-cve-2020-11579-exploitation/ ExploitThird Party Advisory
https://github.com/ShielderSec/CVE-2020-11579 ExploitThird Party Advisory
https://shielder.it/ Third Party Advisory
https://www.phpkb.com Product
https://www.shielder.it/blog/mysql-and-cve-2020-11579-exploitation/ ExploitThird Party Advisory

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Related vulnerabilities

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

8.8CVE-2020-10478Chadhaajay phpkb cross-site request forgery vulnerabilityCSRF in admin/manage-settings.php in Chadha PHPKB Standard Multi-Language 9 allows attackers to change the global settings, potentially gaining code …EPSS 1.2%7.2CVE-2020-10389Chadhaajay phpkb code injection vulnerabilityadmin/save-settings.php in Chadha PHPKB Standard Multi-Language 9 allows remote attackers to achieve Code Execution by injecting PHP code into any PO…EPSS 4.9%7.2CVE-2020-10390Chadhaajay phpkb os command injection vulnerabilityOS Command Injection in export.php (vulnerable function called from include/functions-article.php) in Chadha PHPKB Standard Multi-Language 9 allows r…EPSS 4.3%7.2CVE-2020-10386Chadhaajay phpkb unrestricted file upload vulnerabilityadmin/imagepaster/image-upload.php in Chadha PHPKB Standard Multi-Language 9 allows remote attackers to achieve Code Execution by uploading a .php fi…EPSS 12%6.5CVE-2020-10501Chadhaajay phpkb cross-site request forgery vulnerabilityCSRF in admin/manage-departments.php in Chadha PHPKB Standard Multi-Language 9 allows attackers to edit a department, given the id, via a crafted req…EPSS 0.56%6.5CVE-2020-10497Chadhaajay phpkb cross-site request forgery vulnerabilityCSRF in admin/manage-categories.php in Chadha PHPKB Standard Multi-Language 9 allows attackers to delete a category via a crafted request.EPSS 0.55%6.5CVE-2020-10498Chadhaajay phpkb cross-site request forgery vulnerabilityCSRF in admin/edit-category.php in Chadha PHPKB Standard Multi-Language 9 allows attackers to edit a category, given the id, via a crafted request.EPSS 0.55%6.5CVE-2020-10458Chadhaajay phpkb path traversal vulnerabilityPath Traversal in admin/imagepaster/operations.php in Chadha PHPKB Standard Multi-Language 9 allows attackers to delete any folder on the webserver u…EPSS 1.5%

Source: NIST National Vulnerability Database (record CVE-2020-11579), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.