CVE-2021-47937

e107 CMS 2.3.0 Authenticated Remote Code Execution via Theme Upload

Published: May 10, 2026Updated: Jul 25, 2026 Sources: CVE List NVDCWE-434

8.8HIGH

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-434

Affected Products

E107

oss-projectaka e107 cms

e107 CMSOn-premCMS Plugin

Web & CMS Plugins / cms-core

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques

Command and Control

Initial Access

Persistence

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References

https://e107.org/

e107.org

https://e107.org/download

e107.org

https://www.exploit-db.com/exploits/50315

exploit-db.com

and 1 more references View all →

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