ORSEE Online Recruitment System for Economic Experiments Profile Page tagsets/participant.php eval code injection

Summaryinfo

A vulnerability was found in ORSEE Online Recruitment System for Economic Experiments 3.1.0. It has been declared as critical. This vulnerability affects the function eval of the file tagsets/participant.php of the component Profile Page Handler. Such manipulation leads to Remote Privilege Escalation. This vulnerability is uniquely identified as CVE-2025-67031. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in ORSEE Online Recruitment System for Economic Experiments 3.1.0. It has been rated as critical. Affected by this issue is the function eval of the file tagsets/participant.php of the component Profile Page Handler. The manipulation with an unknown input leads to a remote privilege escalation vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

ORSEE (Online Recruitment System for Economic Experiments) 3.1.0 contains an authenticated Remote Code Execution vulnerability in the participant profile field processing subsystem. Certain field configurations accept values beginning with the prefix "func:" which are passed directly into an eval() call inside tagsets/participant.php and tagsets/options.php.

The advisory is available at github.com. This vulnerability is handled as CVE-2025-67031 since 12/08/2025. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 05/21/2026). This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

By approaching the search of inurl:tagsets/participant.php 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.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• ORSEE

Name

• Online Recruitment System for Economic Experiments

Version

• 3.1.0

CPE 2.3info

• 🔒

CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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