CVE-2025-63238 is a medium-severity reflected Cross-Site Scripting (XSS) vulnerability impacting LimeSurvey versions prior to 6.15.11+250909. This vulnerability allows attackers to exploit the lack of validation of the gid parameter in the getInstance() function located in application/models/QuestionCreate.php. By crafting a malicious URL, an attacker can compromise the logged-in user's session, potentially leading to unauthorized actions on behalf of the user.
The CVSS score for this vulnerability is 6.1, indicating a medium level of severity. The low attack complexity coupled with the requirement for user interaction means that while it is not trivial to exploit, successful exploitation can have significant implications for affected users. Organizations utilizing vulnerable versions should prioritize patching to mitigate this risk.
Risk to organizations includes potential data breaches and unauthorized actions conducted by attackers impersonating legitimate users. Given the nature of XSS vulnerabilities, organizations must take this threat seriously, especially in environments where LimeSurvey is deployed for collecting sensitive information.
Organizations should prioritize patching immediately. The vulnerability was published on April 9, 2026, and remediation steps are available through the latest updates from LimeSurvey. Patching will help ensure the integrity and confidentiality of user interactions within the system.
Vulnerability Details
This vulnerability allows for reflected Cross-Site Scripting (XSS), which is categorized under CWE-79. The affected product is LimeSurvey, specifically all versions prior to 6.15.12. The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N, indicating that the attack can occur over the network with low complexity and without privileges required from the attacker, but it necessitates user interaction.
Technical Analysis
The root cause of CVE-2025-63238 is the lack of proper validation for the gid parameter in the getInstance() function. Attackers can exploit this flaw by crafting a malicious URL that includes an attacker-controlled gid value. When a user clicks on this URL, the vulnerable application executes the attacker's script in the context of the user's session, leading to a reflected XSS attack.
The attack vector is network-based, meaning that the attacker can execute this attack remotely without physical access to the system. The attack complexity is low, allowing even less sophisticated attackers to exploit this vulnerability, provided that they can lure the user into clicking the crafted link. No specific privileges are required for the attacker, and user interaction is needed to initiate the exploit.
Successful exploitation can lead to low impacts on confidentiality and integrity, compromising the user's data and allowing the attacker to perform unauthorized actions. The availability impact is none, as the vulnerability does not affect the system's uptime.
Risk & Impact Analysis
Organizations using LimeSurvey must recognize the real-world risks posed by CVE-2025-63238. The potential for attackers to exploit this vulnerability could result in unauthorized access to sensitive user information and the ability to manipulate survey results. The blast radius of such an exploit could be extensive, particularly in environments where sensitive data is collected.
The urgency for remediation is highlighted by the medium CVSS score of 6.1, indicating that while the threat is not critical, it still warrants immediate attention. Organizations should assess their deployment of LimeSurvey and prioritize patching vulnerable versions in their next patch cycle.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch (6.15.12) are affected by this vulnerability. Organizations should ensure they have upgraded to the latest version to mitigate the risks associated with this XSS vulnerability.
Mitigation & Remediation
To mitigate the risk posed by CVE-2025-63238, organizations should update LimeSurvey to version 6.15.12 or later. If immediate patching is not feasible, consider implementing network controls to restrict access to the application and monitor for unusual behavior. For additional guidance, organizations can explore application security assessments to identify and address potential vulnerabilities.
Detection Guidance
Organizations should monitor application logs for any signs of unusual requests or script executions that may indicate an attempted XSS attack. Behavioral anomalies in user sessions, such as unexpected redirections or unauthorized data submissions, should also be investigated.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-63238 emphasizes the need for continuous security validation practices. Organizations should adopt a proactive approach to identify and remediate similar vulnerabilities promptly. The trend of XSS vulnerabilities remains prevalent, and security teams should prioritize training and awareness to mitigate risks effectively. For more insights on vulnerability management, consider reviewing our article on vulnerability management programs and how to implement effective security measures.
Additionally, integrating continuous penetration testing into the development lifecycle can further strengthen security posture against such vulnerabilities. By engaging in regular security assessments, organizations can better safeguard their applications against evolving threats. For guidance on penetration testing, refer to our resources on penetration testing methodologies and best practices.
In conclusion, as attackers continuously adapt their techniques, organizations must remain vigilant and proactive in their security efforts. Keeping abreast of vulnerabilities such as CVE-2025-63238 is crucial to maintaining a secure environment.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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