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Vulnerability record · CVE-2021-43741 · published 13 April 2022

CVE-2021-43741: Cmsimple path traversal vulnerability

Cmsimple · Cmsimple

CMSimple 5.4 is vulnerable to Directory Traversal. The vulnerability exists when a user changes the file name to malicious file on config.php leading to remote code execution.

9.8 CVSS 3.1 Critical EPSS 4.7% · top 8.5% CWE-22 · Path traversal
9.8CVSS 3.1 base score, v2 7.5
4.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

CMSimple 5.4 is vulnerable to Directory Traversal. The vulnerability exists when a user changes the file name to malicious file on config.php leading to remote code execution.

CVSS:3.1/AV:N/AC:L/PR:N/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/iiSiLvEr/CMSimple5.4-Vulnerabilities Broken Link
https://github.com/iiSiLvEr/CVEs/tree/main/CVE-2021-43741 ExploitThird Party Advisory
https://github.com/iiSiLvEr/CMSimple5.4-Vulnerabilities Broken Link
https://github.com/iiSiLvEr/CVEs/tree/main/CVE-2021-43741 ExploitThird Party Advisory

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Related vulnerabilities

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

9.1CVE-2024-57548Cmsimple incorrect default permissions vulnerabilityCMSimple 5.16 allows the user to edit log.php file via print page.EPSS 0.47%8.6CVE-2021-47734Cmsimple php remote file inclusion vulnerabilityCMSimple 5.4 contains an authenticated local file inclusion vulnerability that allows remote attackers to manipulate PHP session files and execute ar…EPSS 0.78%8.6CVE-2021-47735Cmsimple code injection vulnerabilityCMSimple 5.4 contains an authenticated remote code execution vulnerability that allows logged-in attackers to inject malicious PHP code into template…EPSS 0.88%8.6CVE-2024-58280Cmsimple vulnerabilityCMSimple 5.15 contains a remote command execution vulnerability that allows authenticated attackers to modify file extensions and upload malicious PH…EPSS 0.94%7.5CVE-2024-57547Cmsimple incorrect permission assignment vulnerabilityInsecure Permissions vulnerability in CMSimple v.5.16 allows a remote attacker to obtain sensitive information via a crafted script to the Functional…EPSS 0.57%7.5CVE-2024-57549Cmsimple path traversal vulnerabilityCMSimple 5.16 allows the user to read cms source code through manipulation of the file name in the file parameter of a GET request.EPSS 0.66%7.5CVE-2024-57546Cmsimple vulnerabilityAn issue in CMSimple v.5.16 allows a remote attacker to obtain sensitive information via a crafted script to the validate link function.EPSS 0.58%7.4CVE-2024-33423Cmsimple vulnerabilityCross-Site Scripting (XSS) vulnerability in the Settings menu of CMSimple v5.15 allows attackers to execute arbitrary web scripts or HTML via a craft…EPSS 0.56%

Source: NIST National Vulnerability Database (record CVE-2021-43741), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.