CVE-2021-28931 — HIGH (8.8)

Vulnerability Description

Arbitrary file upload vulnerability in Fork CMS 5.9.2 allows attackers to create or replace arbitrary files in the /themes directory via a crafted zip file uploaded to the Themes panel.

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
Fork-Cms	Fork Cms	5.9.2

Related Weaknesses (CWE)

CWE-434

References

https://github.com/bousalman/ForkCMS-arbitrary-upload/blob/main/README.mdThird Party Advisory
https://github.com/forkcms/forkcms/releases/tag/5.9.2Release NotesThird Party Advisory
https://github.com/bousalman/ForkCMS-arbitrary-upload/blob/main/README.mdThird Party Advisory
https://github.com/forkcms/forkcms/releases/tag/5.9.2Release NotesThird Party Advisory

FAQ

What is CVE-2021-28931?

CVE-2021-28931 is a vulnerability with a CVSS score of 8.8 (HIGH). Arbitrary file upload vulnerability in Fork CMS 5.9.2 allows attackers to create or replace arbitrary files in the /themes directory via a crafted zip file uploaded to the Themes panel.

How severe is CVE-2021-28931?

CVE-2021-28931 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-2021-28931?

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