PT-2026-39512 · E107 Cms · E107 Cms

Halit Akaydin · Published 2026-05-10 · Updated 2026-05-10 · CVE-2021-47937

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions e107 CMS version 2.3.0

Description Authenticated users with theme installation permissions can execute arbitrary commands by uploading malicious theme files. An attacker can upload a crafted theme package through the 'theme.php' endpoint to deploy a web shell in the e107 themes directory and subsequently execute system commands using the payload.php script.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2021-47937

Affected Products

E107 Cms

References · 6

• 🔥 https://exploit-db.com/exploits/50315 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-47937 · Security Note
• https://twitter.com/CVEnew/status/2053537428363993465 · Twitter Post
• https://vulncheck.com/advisories/e107-cms-authenticated-remote-code-execution-via-theme-upload · Note
• https://e107.org · Note
• https://e107.org/download · Note