CVE-2021-28931
Arbitrary file upload in Fork CMS
8.8
HIGH
CVSS 3.1
EPSS 0.42%
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.
How to fix CVE-2021-28931
To remediate CVE-2021-28931, upgrade the affected package to a fixed version below.
- Packagist/forkcms/forkcms—upgrade to 5.9.3 or later
Is CVE-2021-28931 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 5.9.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |