This vulnerability allows attackers to execute arbitrary scripts in the context of the user’s session, which can lead to unauthorized actions or data exposure. The vulnerability is classified as a stored Cross-site Scripting (XSS) flaw, meaning that the malicious script is stored on the server and served to users. The affected product, PORTONE 아임포트 결제버튼 생성 플러그인, has a medium severity level with a CVSS score of 6.5, indicating that it poses a moderate risk to organizations.
Risk to organizations includes potential data theft, session hijacking, and unauthorized actions performed on behalf of users. Given the exploitability of this vulnerability, it is crucial for organizations to assess their exposure and take immediate action. As of now, there is no public exploit available, but the possibility of exploitation remains if the vulnerability is not addressed.
Organizations should prioritize patching immediately. The vulnerability affects all versions of the plugin up to and including version 1.1.19. Therefore, it is essential for users of this plugin to upgrade to the latest version as soon as possible to mitigate the risk.
The vulnerability was published on January 7, 2025, and is currently marked as deferred. This status does not diminish the need for vigilance, as it can still be targeted by attackers in the wild.
In conclusion, organizations should remain proactive in their security measures and stay aware of vulnerabilities that might affect their web applications, particularly those that utilize third-party plugins.
Vulnerability Details
The vulnerability is attributed to improper neutralization of input during web page generation, leading to stored XSS. The CVSS score of 6.5 indicates a medium severity, which is significant enough for organizations to take action. The CWE classification for this vulnerability is CWE-79, which is specific to improper neutralization of input in web applications.
Technical Analysis
The root cause of this vulnerability lies in the failure to properly sanitize user inputs that are displayed on web pages. The attack vector is network-based, allowing remote attackers to exploit the vulnerability without local access. The attack complexity is classified as low, meaning that it can be easily executed by attackers with minimal skill. Low privileges are required to exploit this vulnerability, and user interaction is necessary for the attack to succeed.
The impacts include low confidentiality, integrity, and availability. This indicates that while the immediate effects may not compromise the server or application functionality, the potential for data theft exists, which can have serious implications for user trust and security.
Risk & Impact Analysis
The real-world deployment risk associated with this vulnerability is moderate. Organizations utilizing the affected plugin should assess their exposure and prioritize remediation efforts. The urgency is underscored by the fact that any successful exploitation could lead to significant reputational damage and potential regulatory implications. The blast radius is particularly concerning in multi-user environments, as an attacker could affect numerous users simultaneously.
Additionally, organizations should consider the potential for cascading effects, where the exploitation of this vulnerability could lead to further attacks or exploitation of other weaknesses within their systems.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of the PORTONE 아임포트 결제버튼 생성 플러그인 are all versions up to and including 1.1.19. Organizations using this plugin should verify their version and apply necessary updates.
Mitigation & Remediation
To mitigate this vulnerability, organizations should upgrade to the latest version of the PORTONE 아임포트 결제버튼 생성 플러그인. If a patch is not available, organizations should consider implementing input validation and output encoding in their applications to prevent XSS attacks. Additionally, organizations can enhance security through configuration hardening, such as restricting user input fields and ensuring proper error handling. Regular security assessments can help identify and rectify vulnerabilities in a timely manner.
For further guidance on security testing, organizations may refer to our penetration testing services to identify similar weaknesses.
Detection Guidance
Organizations should monitor for unusual behavior, such as unexpected changes in the application’s output or unauthorized access attempts. Log indicators, such as unusual script executions or changes in user sessions, should be tracked. Behavioral anomalies can provide early warnings of potential exploitation. Additionally, network signatures related to XSS attacks should be established to detect malicious activities.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in the potential for widespread exploitation if left unpatched. Security teams should be aware of the patterns that emerge from this and similar vulnerabilities, as they highlight the importance of input validation and user data handling.
To bolster defenses, organizations should ensure that security practices are integrated into the software development lifecycle. Continuous monitoring and assessments can provide insights into the effectiveness of security controls.
For more information on securing web applications, organizations may refer to our resources on web application penetration testing and strategies for application security.
Lastly, organizations should also familiarize themselves with the latest trends in security vulnerabilities by reviewing our 2025 vulnerability exposure severity trends report.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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