CVE-2014-5468: Railo thumbnail.cfm file inclusion allows remote code execution

Automated analysis

Generated by VULONE's analysis model from the NVD record, CISA KEV and EPSS data on 20 September 2026. Confidence: medium.

high priorityCVSS 8.8 with no authentication and public exploit code, though the required user interaction and the lack of a confirmed fixed version keep it below critical.

What it is

Railo 4.2.1 and earlier exposes a file inclusion flaw in thumbnail.cfm, where a crafted URL can point the component at a malicious PNG file. Because the included file is processed by the server, an attacker can read sensitive data or run arbitrary code in the Railo context. The record does not specify the exact parameter or parsing path involved.

Impact

An attacker can obtain sensitive information from the server or execute arbitrary code under the Railo application's privileges. Successful code execution would give control of the affected web application host.

Attack surface

Reachable over the network through an HTTP request to thumbnail.cfm; the CVSS vector requires user interaction (UI:R) and no authentication (PR:N). The description does not state what interaction is required or whether the malicious file must be hosted remotely.

Exploitation

Public exploit code is referenced in Exploit-DB and PacketStorm, and EPSS is 0.52563 (98.9th percentile), indicating elevated likelihood of exploitation; the CVE is not listed in CISA KEV, so no confirmed in-the-wild activity is recorded here.

What to do

• Upgrade Railo to a version later than 4.2.1, or migrate to Lucee, since the record does not identify a fixed Railo release.
• If upgrade is not possible, restrict or disable access to thumbnail.cfm and block requests that supply external file paths or URLs.
• Validate and whitelist file paths and remote sources accepted by thumbnail.cfm, rejecting any user-controlled path input.
• Run the Railo service with least privilege and restrict outbound network access so a successful inclusion cannot fetch attacker-hosted content.
• Monitor vendor and community advisories for a confirmed patched version before relying on version-only remediation.

Detection

• Review web server and Railo logs for requests to thumbnail.cfm containing external URLs, path traversal sequences, or unexpected file extensions.
• Alert on outbound HTTP connections from the Railo host to unfamiliar hosts, which may indicate remote file inclusion.
• Look for unexpected file writes or new executable content in Railo web directories and temporary folders.
• Correlate thumbnail.cfm access with subsequent process creation or unusual child processes from the Railo service account.

This assessment is produced automatically and is not human-reviewed. Verify against the vendor advisory before acting on it.