CVE-2021-42643 — HIGH (8.8)

Vulnerability Description

cmseasy V7.7.5_20211012 is affected by an arbitrary file write vulnerability. Through this vulnerability, a PHP script file is written to the website server, and accessing this file can lead to a code execution vulnerability.

CVSS Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Cmseasy	Cmseasy	7.7.5_20211012

Related Weaknesses (CWE)

CWE-22

References

https://jdr2021.github.io/2021/10/14/CmsEasy_7.7.5_20211012%E5%AD%98%E5%9C%A8%E4ExploitThird Party Advisory
https://jdr2021.github.io/2021/10/14/CmsEasy_7.7.5_20211012%E5%AD%98%E5%9C%A8%E4ExploitThird Party Advisory

FAQ

What is CVE-2021-42643?

CVE-2021-42643 is a vulnerability with a CVSS score of 8.8 (HIGH). cmseasy V7.7.5_20211012 is affected by an arbitrary file write vulnerability. Through this vulnerability, a PHP script file is written to the website server, and accessing this file can lead to a code...

How severe is CVE-2021-42643?

CVE-2021-42643 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-42643?

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