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## https://sploitus.com/exploit?id=34F810C9-3E08-5B0C-A381-8848015036B6
# ๐จ CVE-2026-48907 - JCE (Joomla Content Editor) Unauthenticated Remote Code Execution
---
## โ ๏ธ Critical Unauthenticated RCE in JCE (Joomla Content Editor)
*A critical access control vulnerability allowing unauthenticated attackers to compromise vulnerable Joomla installations running JCE.*
---
# ๐ Overview
**CVE-2026-48907** is a critical vulnerability affecting **JCE (Joomla Content Editor)**, one of the most widely used editors within the Joomla ecosystem.
The flaw originates from **improper access control (CWE-284)**, enabling unauthenticated attackers to create editor profiles and abuse file upload functionality to achieve **Remote Code Execution (RCE)**.
Successful exploitation can lead to complete website compromise.
---
# ๐ฏ Vulnerability Information
| Property | Value |
|-----------|---------|
| CVE | CVE-2026-48907 |
| Product | JCE (Joomla Content Editor) |
| Vendor | JCE Project |
| Severity | Critical |
| CVSS v4 | 10.0 |
| CWE | CWE-284 |
| Attack Vector | Network |
| Authentication | Not Required |
| User Interaction | None |
| Impact | Remote Code Execution |
---
# ๐ฅ Affected Versions
| Product | Vulnerable Versions |
|----------|------------------|
| JCE | Prior to 2.9.99.5 |
---
# โก Attack Characteristics
```text
Attack Vector : Network
Attack Complexity : Low
Privileges Required: None
User Interaction : None
Impact : Complete Site Compromise
```
---
# ๐ CVSS Overview
```text
CVSS v4.0 Score: 10.0 (Critical)
```
| Metric | Value |
|----------|---------|
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Confidentiality | High |
| Integrity | High |
| Availability | High |
---
# ๐น Exploitation Flow
```text
Unauthenticated User
โ
โผ
Create Unauthorized JCE Profile
โ
โผ
Abuse File Upload Mechanism
โ
โผ
Upload Malicious PHP Payload
โ
โผ
Execute Arbitrary Code
โ
โผ
Full Joomla Server Compromise
```
---
# ๐ฅ Potential Impact
Successful exploitation may allow:
- Remote Code Execution
- Web Shell Deployment
- Website Defacement
- Credential Theft
- Database Access
- Administrative Account Creation
- Malware Distribution
- Lateral Movement
- Complete CMS Takeover
---
# ๐ฌ Root Cause
The vulnerability is caused by:
```text
Improper Access Control
(CWE-284)
```
Attackers can bypass intended authorization controls and manipulate JCE functionality that should only be available to privileged users.
---
# ๐ Detection Opportunities
## Suspicious Requests
Monitor for unusual requests involving:
```text
/com_jce/
/index.php?option=com_jce
```
---
## File Upload Monitoring
Look for newly created files:
```text
.php
.phtml
.phar
.php5
```
inside:
```text
/images/
/media/
/tmp/
/uploads/
```
---
## Web Shell Indicators
Common indicators include:
```text
system($_GET['cmd'])
shell_exec()
passthru()
exec()
base64_decode()
eval()
assert()
```
---
## Process Monitoring
Unexpected execution of:
```text
php
bash
sh
python
perl
nc
curl
wget
```
---
# ๐ก๏ธ Mitigation
## Immediate Actions
### Update JCE
Upgrade immediately to:
```text
JCE 2.9.99.5 or later
```
---
### Restrict Administrative Access
```text
โ IP Allowlisting
โ VPN Access
โ Web Application Firewall
โ MFA Enforcement
```
---
### Audit Existing Installations
Review:
```text
โ Newly created JCE profiles
โ Unknown administrator accounts
โ Uploaded PHP files
โ Suspicious cron jobs
โ Web server logs
```
---
### Threat Hunting
Search for:
```text
Unexpected PHP files
Obfuscated payloads
Reverse shells
Persistence mechanisms
```
---
# ๐ Indicators of Compromise (IOCs)
### Suspicious Files
```text
shell.php
cmd.php
upload.php
backdoor.php
adminer.php
```
### Suspicious Functions
```php
eval()
assert()
system()
exec()
shell_exec()
passthru()
```
### Network Activity
```text
Reverse shell connections
Outbound traffic to unknown hosts
Beaconing behavior
```
---
# ๐ References
- NIST National Vulnerability Database
- Joomla Security Advisories
- JCE Security Updates
- CVE Program
---
# โ ๏ธ Disclaimer
This repository is intended for:
- Security Research
- Defensive Analysis
- Detection Engineering
- Incident Response
- Vulnerability Awareness
This repository does **not** provide exploit code or instructions for unauthorized access.
---
# ๐ด CRITICAL - CVSS 10.0
### CVE-2026-48907
**JCE (Joomla Content Editor)**
**Unauthenticated Remote Code Execution**
โญ Patch Immediately โญ