CVE-2021-43741

9.8 criticalEPSS 4.7%

Critical (9.8) in cmsimple cmsimple. EPSS 4.7% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 4.7% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)
CWE: CWE-22
Published: 2022-04-13
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

cmsimple:cmsimple

References

https://github.com/iiSiLvEr/CMSimple5.4-Vulnerabilities
https://github.com/iiSiLvEr/CVEs/tree/main/CVE-2021-43741
https://github.com/iiSiLvEr/CMSimple5.4-Vulnerabilities
https://github.com/iiSiLvEr/CVEs/tree/main/CVE-2021-43741

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