What is CVE-2021-43741?

CVE-2021-43741 is a critical-severity vulnerability in Cmsimple, classified under Path Traversal. CVSS score: 9.8/10. Published 2022-04-13.

How severe is CVE-2021-43741?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-43741 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Path Traversal in Cmsimple

CVE-2021-43741

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.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.044 (90.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cmsimple — versions 5.4
N/a — versions n/a

Weakness classification (CWE)

CWE-22 — Path Traversal

Public proof-of-concept exploits

References

cve@mitre.org (x_refsource_MISC, Broken Link)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-43741?: CVE-2021-43741 is a critical-severity vulnerability in Cmsimple, classified under Path Traversal. CVSS score: 9.8/10. Published 2022-04-13.
How severe is CVE-2021-43741?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-43741 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.