CVE-2021-47753 — CRITICAL (9.8)

Vulnerability Description

phpKF CMS 3.00 Beta y6 contains an unauthenticated file upload vulnerability that allows remote attackers to execute arbitrary code by bypassing file extension checks. Attackers can upload a PHP file disguised as a PNG, rename it, and execute system commands through a crafted web shell parameter.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Phpkf	Cms	3.00

Related Weaknesses (CWE)

CWE-434

References

https://www.exploit-db.com/exploits/50610ExploitThird Party Advisory
https://www.phpkf.com/Product
https://www.phpkf.com/indirme.phpProduct
https://www.exploit-db.com/exploits/50610ExploitThird Party Advisory

FAQ

What is CVE-2021-47753?

CVE-2021-47753 is a vulnerability with a CVSS score of 9.8 (CRITICAL). phpKF CMS 3.00 Beta y6 contains an unauthenticated file upload vulnerability that allows remote attackers to execute arbitrary code by bypassing file extension checks. Attackers can upload a PHP file ...

How severe is CVE-2021-47753?

CVE-2021-47753 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-47753?

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