VULNERABILITY INTELLIGENCE
CVE-2021-47937
CVSS score8.8 HIGH
EPSS probability0.59%
CISA KEVNot currently listed
Published2026-05-10
Last modified2026-07-25
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
e107 CMS 2.3.0 contains a remote code execution vulnerability that allows authenticated users with theme installation permissions to execute arbitrary commands by uploading malicious theme files. Attackers can upload a crafted theme package through the theme.php endpoint that deploys a web shell to the e107_themes directory, then execute system commands via the payload.php script.
Weakness classification
- disclosure@vulncheck.com: CWE-434