CVE-2025-61808 Overview
CVE-2025-61808 is an Unrestricted Upload of File with Dangerous Type vulnerability (CWE-434) affecting Adobe ColdFusion application servers. The flaw allows a high-privileged attacker to upload malicious files to vulnerable ColdFusion instances, potentially leading to arbitrary code execution on the underlying server. This vulnerability is particularly dangerous because exploitation does not require user interaction and the scope is changed, meaning the attacker can impact resources beyond the vulnerable component.
Critical Impact
A high-privileged attacker can achieve arbitrary code execution on affected ColdFusion servers without user interaction, potentially compromising the entire server infrastructure and any connected systems.
Affected Products
- Adobe ColdFusion 2025 (Update 4 and earlier)
- Adobe ColdFusion 2023 (Update 16 and earlier)
- Adobe ColdFusion 2021 (Update 22 and earlier)
Discovery Timeline
- 2025-12-10 - CVE-2025-61808 published to NVD
- 2025-12-12 - Last updated in NVD database
Technical Details for CVE-2025-61808
Vulnerability Analysis
This vulnerability stems from inadequate file type validation in Adobe ColdFusion's file upload functionality. ColdFusion servers that accept file uploads fail to properly restrict the types of files that can be uploaded by authenticated administrators. An attacker with high-level privileges can exploit this weakness to upload files containing executable code, such as ColdFusion Markup Language (CFML) scripts or Java-based payloads.
The "changed scope" designation indicates that successful exploitation can affect resources beyond the ColdFusion application itself. Once malicious code is uploaded and executed, an attacker could pivot to compromise the underlying operating system, access sensitive data, establish persistence mechanisms, or move laterally within the network.
Root Cause
The root cause of CVE-2025-61808 is insufficient server-side validation of uploaded file content and types. The ColdFusion server fails to implement robust checks that would prevent the upload of dangerous file types such as .cfm, .cfc, .jsp, or other executable formats. This allows attackers to bypass client-side restrictions and upload malicious payloads directly to the server's webroot or other accessible directories.
Attack Vector
The attack is network-based and requires the attacker to have high-privilege access to the ColdFusion administrative interface. Once authenticated, the attacker can leverage file upload functionality to place malicious scripts on the server. The uploaded files can then be accessed via HTTP requests, triggering code execution in the context of the ColdFusion server process.
The attack flow typically involves authenticating to the ColdFusion administrator panel, navigating to a file upload feature, uploading a malicious CFML or Java payload that bypasses any existing file type restrictions, and then triggering execution of the uploaded payload by accessing it through a web request.
Detection Methods for CVE-2025-61808
Indicators of Compromise
- Unexpected files with executable extensions (.cfm, .cfc, .jsp) appearing in ColdFusion web directories
- Unusual file upload activity in ColdFusion administrator access logs
- New or modified files in /CFIDE/, /cf_scripts/, or custom web application directories
- Anomalous outbound network connections originating from the ColdFusion server process
Detection Strategies
- Monitor ColdFusion administrator authentication logs for unusual access patterns or failed login attempts followed by successful authentication
- Implement file integrity monitoring on ColdFusion web directories to detect unauthorized file additions or modifications
- Review web server access logs for requests to newly created files or suspicious URI patterns
- Deploy network detection rules to identify potential webshell communication patterns
Monitoring Recommendations
- Enable verbose logging for ColdFusion administrator actions and file system operations
- Configure SIEM alerts for file creation events in ColdFusion application directories
- Monitor for process spawning from the ColdFusion server process that may indicate post-exploitation activity
- Implement regular vulnerability scanning to identify unpatched ColdFusion instances
How to Mitigate CVE-2025-61808
Immediate Actions Required
- Apply the latest security updates from Adobe immediately for all affected ColdFusion versions
- Review ColdFusion administrator access and revoke unnecessary high-privilege accounts
- Audit recent file uploads and additions to web-accessible directories for suspicious content
- Restrict network access to ColdFusion administrator interfaces to trusted IP addresses only
Patch Information
Adobe has released security updates to address CVE-2025-61808 as documented in security bulletin APSB25-105. Organizations should update to the following patched versions:
- ColdFusion 2025: Update 5 or later
- ColdFusion 2023: Update 17 or later
- ColdFusion 2021: Update 23 or later
Workarounds
- Implement strict IP-based access controls to limit ColdFusion administrator access to trusted internal networks
- Configure web application firewalls to inspect and block potentially malicious file uploads
- Disable or remove file upload functionality if not required for business operations
- Apply the principle of least privilege to reduce the number of accounts with administrative access
# Example: Restrict ColdFusion admin access via Apache configuration
<Location "/CFIDE/administrator">
Require ip 10.0.0.0/8
Require ip 192.168.0.0/16
# Deny all other access
Require all denied
</Location>
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
