Lucee 5.x/6.x /lucee/admin/web.cfm code injection

Summaryinfo

A vulnerability was found in Lucee 5.x/6.x. It has been classified as critical. Affected by this vulnerability is an unknown functionality of the file /lucee/admin/web.cfm. Performing a manipulation results in code injection. This vulnerability is known as CVE-2025-34074. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Lucee 5.x/6.x. It has been classified as critical. This affects an unknown code block of the file /lucee/admin/web.cfm. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An authenticated remote code execution vulnerability exists in Lucee’s administrative interface due to insecure design in the scheduled task functionality. An administrator with access to /lucee/admin/web.cfm can configure a scheduled job to retrieve a remote .cfm file from an attacker-controlled server, which is written to the Lucee webroot and executed with the privileges of the Lucee service account. Because Lucee does not enforce integrity checks, path restrictions, or execution controls for scheduled task fetches, this feature can be abused to achieve arbitrary code execution. This issue is distinct from CVE-2024-55354.

The weakness was published by Alexander Philiotis. It is possible to read the advisory at raw.githubusercontent.com. This vulnerability is uniquely identified as CVE-2025-34074 since 04/15/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation requires an enhanced level of successful authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/03/2025). The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

By approaching the search of inurl:lucee/admin/web.cfm it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-19755). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• Lucee

Version

• 5.x
• 6.x

CPE 2.3info

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CPE 2.2info

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Be aware that VulDB is the high quality source for vulnerability data.

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