CVE-2025-23531 is a high-severity vulnerability classified as a Cross-site Scripting (XSS) flaw found in the RSVPMaker Volunteer Roles plugin. This vulnerability allows attackers to execute malicious scripts in the context of a user's session, posing significant risks to the confidentiality, integrity, and availability of affected systems. The CVSS score for this vulnerability is 7.1, indicating serious implications for organizations using this plugin.
The vulnerability status is currently marked as 'Deferred', and it affects versions of RSVPMaker Volunteer Roles from n/a through 1.5.1. Given the nature of XSS vulnerabilities, organizations should be aware that risk to organizations includes potential unauthorized access to sensitive user data and session hijacking.
Organizations should prioritize patching immediately. The exploitation status indicates no known public exploit has been confirmed, but the potential for future exploitation remains if not addressed.
It is critical for security teams to assess their current deployments of the RSVPMaker Volunteer Roles plugin and implement necessary mitigations to protect against this vulnerability.
Vulnerability Details
The CVE-2025-23531 vulnerability is characterized by improper neutralization of input during web page generation, specifically leading to reflected XSS. This vulnerability is categorized under CWE-79, which pertains to improper neutralization of input during web page generation. The attack vector is network-based, and user interaction is required for exploitation.
The CVSS 3.1 vector string is "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L", reflecting a low attack complexity and no privileges required to exploit this vulnerability. The confidentiality, integrity, and availability impacts are all rated as low.
Technical Analysis
The root cause of CVE-2025-23531 lies in the inadequate validation of user inputs when generating web pages. Attackers may leverage this vulnerability by injecting malicious scripts that get executed in the browsers of users visiting affected pages.
The attack vector is primarily network-based, requiring the attacker to craft a URL that exploits the vulnerability and get the victim to click the link. The attack complexity is low, as it does not require advanced skills to exploit. The attacker does not need any privileges to execute the attack, but user interaction is required, making it imperative for organizations to educate users on potential phishing attempts.
The confidentiality impact is low as the attacker may gain access to user session data, but there is no direct data leakage. Integrity and availability impacts are also low, meaning that while the attack can disrupt user experience, it does not directly compromise system integrity or availability.
Risk & Impact Analysis
The real-world risk associated with CVE-2025-23531 highlights the potential for attackers to conduct successful phishing campaigns that could lead to session hijacking. This vulnerability underscores the importance of input validation and sanitization in web applications.
The urgency for organizations to address this vulnerability is high due to the potential blast radius. Any organization utilizing the RSVPMaker Volunteer Roles plugin should consider the implications of this vulnerability to their operations and user trust. Given the defined urgency level, organizations should schedule remediation to mitigate risks effectively.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
This vulnerability affects the RSVPMaker Volunteer Roles plugin in versions from n/a through 1.5.1. Organizations should ensure they are using the latest versions and review their configurations.
Mitigation & Remediation
Organizations should implement immediate patching for the RSVPMaker Volunteer Roles plugin to address this vulnerability. It is important to regularly check for updates and apply them promptly.
In addition to patching, organizations should ensure that user inputs are validated and sanitized adequately to prevent XSS vulnerabilities. For comprehensive security assessments, organizations may consider leveraging application security assessments that can help identify and remediate potential vulnerabilities.
Detection Guidance
To detect exploitation attempts, organizations should monitor logs for unusual activity, particularly in user input fields. Behavioral anomalies such as unexpected redirects or script tags in input should be flagged for further investigation.
AppSecure Threat Intelligence Insight
The emergence of CVE-2025-23531 is indicative of the ongoing challenges associated with web application security. Organizations need to remain vigilant in their security practices, especially with plugins that may not receive regular updates.
Security teams should consider implementing proactive measures such as web application penetration testing to identify vulnerabilities before they can be exploited. Engaging in continuous security assessments and adopting a robust security posture can significantly reduce exposure to such vulnerabilities.
Additionally, the findings from this case can guide future security enhancements and provide insights for developing more resilient applications.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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