Vulnerability · Published Jul 7, 2021 · Assigned by mitre
CVE-2021-28931
High 8.8
In plain English
A high-severity security flaw in the forkcms/forkcms package (Packagist). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.2%top 31.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | forkcms/forkcms | 5.9.3 | GHSA-748f-wv76-x9hg |
Affected products (as reported)
References
- https://github.com/forkcms/forkcms/releases/tag/5.9.2 x_refsource_MISC
- https://github.com/bousalman/ForkCMS-arbitrary-upload/blob/main/README.md x_refsource_MISC