CVE-2025-55010 identifies a critical vulnerability in Kanboard, a project management tool utilizing the Kanban methodology. This vulnerability allows admin users to instantiate arbitrary PHP objects due to an unsafe deserialization flaw in the ProjectEventActivityFormatter. Specifically, before version 1.2.47, the event["data"] field in the project_activities table can be manipulated by an attacker, leading to severe security risks.
The CVSS base score is 9.1, indicating a critical severity. The attack vector is network-based, with low complexity and high privileges required for exploitation. This vulnerability enables an attacker to write a web shell into the /plugins directory, resulting in remote code execution on the host system. Organizations using Kanboard must take immediate action to mitigate this risk.
This issue was disclosed on August 12, 2025, and has been patched in version 1.2.47. Organizations should prioritize updating to this version to protect against potential exploitation. Failure to remediate this vulnerability could lead to unauthorized access and significant data breaches.
Organizations should prioritize patching immediately.
Vulnerability Details
The unsafe deserialization vulnerability in Kanboard allows admin users to instantiate arbitrary PHP objects. This vulnerability is classified under CWE-502, indicating the potential for remote code execution. It was published on August 12, 2025, and is present in all versions prior to 1.2.47.
Technical Analysis
The root cause of this vulnerability lies in the insecure handling of data during the deserialization process. Attackers can modify the event["data"] field, leading to the instantiation of malicious PHP objects. The attack complexity is low; however, high privileges are required, meaning only admin accounts can exploit this vulnerability. User interaction is not required for successful exploitation.
The impacts are significant: confidentiality, integrity, and availability are all affected, as an attacker can execute arbitrary code on the host system. This vulnerability exemplifies a critical risk for organizations leveraging Kanboard for project management.
Risk & Impact Analysis
Organizations utilizing Kanboard face serious risks from CVE-2025-55010. The potential for arbitrary code execution leads to a high blast radius, affecting not only the server running Kanboard but potentially other connected systems. Given the critical nature of this vulnerability, it is imperative for organizations to address it in their patch cycle immediately.
The critical CVSS score of 9.1 indicates an urgent need for remediation. Organizations should implement the patch provided in version 1.2.47 to mitigate these risks effectively.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch 1.2.47 are vulnerable to CVE-2025-55010. Organizations using any earlier version of Kanboard should prioritize updates to mitigate the risk of exploitation.
Mitigation & Remediation
To remediate this vulnerability, organizations should upgrade to Kanboard version 1.2.47 or later. If immediate patching is not possible, consider isolating the affected system from the network and implementing strict access controls to limit exposure. Regular monitoring for unusual activities and ensuring proper configuration of security settings can also provide additional layers of defense.
For further assistance, organizations can engage in penetration testing to validate their security posture.
Detection Guidance
Organizations should monitor logs for unusual access patterns or attempts to modify the project_activities table. Behavioral anomalies, such as unexpected processes in the /plugins directory, should raise immediate alerts. Implementing network signatures to detect unauthorized PHP execution attempts can also enhance detection capabilities.
AppSecure Threat Intelligence Insight
CVE-2025-55010 represents a significant risk to organizations using Kanboard. As remote code execution vulnerabilities continue to be a focus for attackers, security teams should reinforce their understanding of secure coding practices and vulnerability management. Regularly updating systems, alongside proactive vulnerability management protocols, is essential in defending against such threats.
For comprehensive security strategies, organizations should consider penetration testing methodology to identify and address potential weaknesses in their systems.
In conclusion, understanding the implications of CVE-2025-55010 and implementing robust security measures will help organizations mitigate risks effectively. Continuous monitoring and improvement of security postures are essential in today's evolving threat landscape.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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