Overview
In this post, we are delving into a critical vulnerability, CVE-2025-54261, that impacts multiple versions of the ColdFusion web application development platform. This vulnerability, termed as an ‘Improper Limitation of a Pathname to a Restricted Directory’ or ‘Path Traversal’ vulnerability, potentially allows an attacker to execute arbitrary code on the affected system. It is important to address this vulnerability due to its high severity score and the potential for system compromise or data leakage.
Vulnerability Summary
CVE ID: CVE-2025-54261
Severity: Critical (9.0)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage
Affected Products
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Product | Affected Versions
ColdFusion | 2025.3
ColdFusion | 2023.15
ColdFusion | 2021.21 and earlier
How the Exploit Works
A ‘Path Traversal’ vulnerability occurs when an application improperly restricts the user’s ability to navigate the file directory. In the case of CVE-2025-54261, an attacker can exploit this vulnerability to make ColdFusion execute arbitrary code in a location of their choosing. This is achieved by manipulating variables that reference file paths in the system.
Conceptual Example Code
As an example, the attacker might use a malicious HTTP request similar to the following:
POST /CFIDE/adminapi/administrator.cfc?method=login HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
cfadminPassword=attacker&requestedfilepath=../../../../../etc/passwd&newfilepath=attacker-controlled-pathIn the above example, the “requestedfilepath” parameter is manipulated to move out of the intended directory (‘../../../’) and read the “/etc/passwd” file. The “newfilepath” parameter is then used to specify the location where the attacker wants to write the file.
The above is a simplified example and real-world attacks would likely be more complex and tailored to the target environment.
Mitigations
Users of affected versions of ColdFusion are advised to apply the vendor patch as soon as it is available. As a temporary mitigation, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help detect and block attempts to exploit this vulnerability. However, these measures are not a substitute for applying the vendor patch and should be seen as a stopgap, rather than a long-term solution.
