CVE-2025-23491 is a high-severity vulnerability identified in the VSTEMPLATE Creator plugin developed by Vikash Srivastava. The vulnerability is classified as a Cross-site Scripting (XSS) issue, which allows attackers to inject and execute scripts in the context of users. This vulnerability affects VSTEMPLATE Creator versions up to and including 2.0.2.
The vulnerability has a CVSS score of 7.1, which is categorized as high severity. Given the nature of the flaw, it poses a significant risk to organizations using the affected software. The potential for exploitation underscores the urgency for defenders to address this situation promptly.
As of now, this vulnerability is in a deferred status, meaning that while it has been identified, it may not yet have a public exploit available. However, organizations should not assume that exploitation is impossible, especially given the nature of XSS vulnerabilities.
Organizations should prioritize patching immediately to mitigate the risks associated with this vulnerability. Regular updates and security assessments can help prevent potential exploitation of such vulnerabilities.
Vulnerability Details
The official CVE description notes that this vulnerability allows improper neutralization of input during web page generation leading to reflected XSS. The vulnerability is classified under CWE-79, indicating a weakness related to improper neutralization of input.
The CVSS vector string for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L. This indicates that the attack vector is network-based, with low complexity and no privileges required for exploitation, but user interaction is necessary.
The vulnerability has a confidentiality, integrity, and availability impact classified as low, indicating that an attacker may not have significant access to the system but can still perform malicious actions within the context of the application.
Technical Analysis
The root cause of CVE-2025-23491 is linked to insufficient input validation during the generation of web pages in the VSTEMPLATE Creator plugin. Attackers may leverage this weakness to inject malicious scripts that execute in the user's browser.
The attack vector for this vulnerability is network-based, targeting users who interact with web pages generated by the affected plugin. The complexity of the attack is low, as it requires minimal effort to exploit.
No privileges are required for an attacker to exploit this vulnerability, but user interaction is necessary. This means that users must click on a malicious link or visit an affected page for the attack to succeed.
The impacts on confidentiality, integrity, and availability are all classified as low. While the potential for data exposure exists, the exploit's impact may be limited to the user's session.
Risk & Impact Analysis
Risk to organizations includes unauthorized script execution in the context of users, potentially leading to data theft, session hijacking, or other malicious actions. The blast radius is significant, as multiple users interacting with the vulnerable plugin are at risk.
Given the continuing prevalence of XSS vulnerabilities and their ease of exploitation, organizations should assess their exposure and implement appropriate mitigations. The urgency is high, as the CVSS score of 7.1 reflects a serious risk that requires immediate attention.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of VSTEMPLATE Creator are all versions prior to vendor patch, specifically up to and including version 2.0.2.
Mitigation & Remediation
Organizations should check for updates from the vendor and apply the latest patches to VSTEMPLATE Creator. If a patch is not available, consider disabling the plugin until a resolution is provided.
Additionally, implementing web application firewalls (WAFs) can help to filter out malicious input and mitigate the risk of XSS attacks. Continuous security assessments are also recommended to identify and remediate such vulnerabilities in a timely manner.
Organizations should validate remediation through penetration testing to identify similar weaknesses.
Detection Guidance
Organizations should monitor logs for any unusual activity that may indicate exploitation attempts, including unexpected script execution or suspicious HTTP requests.
Behavioral anomalies in user sessions and requests to unexpected URLs should also be flagged for further investigation.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-23491 highlights the persistent nature of XSS vulnerabilities in web applications. Security teams should recognize this as a reminder to enhance their input validation mechanisms.
The pattern of XSS vulnerabilities indicates a trend where attackers consistently exploit web applications with insufficient protections. Organizations should take proactive measures to ensure their applications are resilient against such attacks.
Security teams are encouraged to review best practices in application security, including regular code reviews and the implementation of security controls. For further insights, organizations can explore web application penetration testing and the importance of continuous security training for developers.
Additionally, organizations should consider leveraging penetration testing methodology to enhance their security posture and detect potential vulnerabilities.
Overall, the strategic takeaway is to adopt a culture of security within the organization, ensuring that security practices are integrated into the development lifecycle.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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