CVE-2020-21359 — CRITICAL (9.8)

Vulnerability Description

An arbitrary file upload vulnerability in the Template Upload function of Maccms10 allows attackers bypass the suffix whitelist verification to execute arbitrary code via adding a character to the end of the uploaded file's name.

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
Maccms	Maccms	10.0

Related Weaknesses (CWE)

CWE-434

References

https://github.com/magicblack/maccms10/issues/80ExploitIssue TrackingThird Party Advisory
https://github.com/magicblack/maccms10/issues/80ExploitIssue TrackingThird Party Advisory

FAQ

What is CVE-2020-21359?

CVE-2020-21359 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An arbitrary file upload vulnerability in the Template Upload function of Maccms10 allows attackers bypass the suffix whitelist verification to execute arbitrary code via adding a character to the end...

How severe is CVE-2020-21359?

CVE-2020-21359 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-2020-21359?

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