CVE-2021-42645 — CRITICAL (10.0)

Vulnerability Description

CMSimple_XH 1.7.4 is affected by a remote code execution (RCE) vulnerability. To exploit this vulnerability, an attacker must use the "File" parameter to upload a PHP payload to get a reverse shell from the vulnerable host.

CVSS Score

10.0

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Cmsimple-Xh	Cmsimple Xh	1.7.4

Related Weaknesses (CWE)

CWE-434

References

https://github.com/Net-hunter121/CMSimple_XH-Unauth-RCEExploitThird Party Advisory
https://github.com/cmsimple-xh/cmsimple-xh/releases/tag/1.7.5Release NotesThird Party Advisory
https://github.com/Net-hunter121/CMSimple_XH-Unauth-RCEExploitThird Party Advisory
https://github.com/cmsimple-xh/cmsimple-xh/releases/tag/1.7.5Release NotesThird Party Advisory

FAQ

What is CVE-2021-42645?

CVE-2021-42645 is a vulnerability with a CVSS score of 10.0 (CRITICAL). CMSimple_XH 1.7.4 is affected by a remote code execution (RCE) vulnerability. To exploit this vulnerability, an attacker must use the "File" parameter to upload a PHP payload to get a reverse shell fr...

How severe is CVE-2021-42645?

CVE-2021-42645 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-42645?

Check the references section above for vendor advisories and patch information. Affected products include: Cmsimple-Xh Cmsimple Xh.