This vulnerability allows improper neutralization of input during web page generation, specifically leading to stored Cross-site Scripting (XSS) in the viher3 Easy EU Cookie Law plugin. This issue affects all versions up to 1.3.3.1. The vulnerability is classified as medium severity with a CVSS score of 6.5, indicating that organizations should address it in their priority patch cycle.
Risk to organizations includes potential unauthorized access to sensitive data and the ability for attackers to execute malicious scripts in the context of users’ sessions. The attack vector is through network interactions, with low complexity required for exploitation. User interaction is necessary for triggering the exploit, making it important for organizations to educate users about the risks.
As of now, there are no public exploits confirmed for this vulnerability, and it has not been included in the Known Exploited Vulnerabilities (KEV) catalog. However, given the nature of XSS vulnerabilities, organizations should remain vigilant and prioritize remediation efforts.
Organizations should prioritize patching immediately to prevent possible exploitation. Regular updates and security awareness training for users can further mitigate risks associated with such vulnerabilities.
Vulnerability Details
The official description states that this vulnerability arises from improper neutralization of input during web page generation, specifically allowing stored Cross-site Scripting (XSS). It affects the Easy EU Cookie Law plugin, with versions from n/a through 1.3.3.1 being vulnerable. The CVSS 3.1 score is 6.5, indicating a medium severity level.
The vulnerability is categorized under CWE-79 (Improper Neutralization of Input During Web Page Generation). The attack vector is network-based, with low complexity for exploitation, requiring low privileges and user interaction, thus having a confidentiality, integrity, and availability impact classified as low.
Technical Analysis
The root cause of this vulnerability lies in the plugin's failure to properly sanitize user input, allowing malicious scripts to be stored and later executed when the affected page is accessed. The attack vector is primarily network-based, meaning that an attacker can exploit this vulnerability remotely.
The attack complexity is low, as attackers do not require special conditions to exploit this vulnerability. Low privileges are required, and user interaction is necessary, making it crucial for organizations to instruct users to be cautious about inputting data into the affected plugin.
The impacts of this vulnerability include potential unauthorized access to sensitive information, with low impacts on confidentiality, integrity, and availability. As such, organizations should implement measures to monitor and mitigate potential exploitation.
Risk & Impact Analysis
The risk associated with this vulnerability primarily stems from the potential for attackers to execute scripts in the context of user sessions, leading to unauthorized actions or data theft. Given the plugin's widespread use, the potential blast radius is significant, affecting numerous organizations that utilize this tool.
Organizations should assess their current use of the Easy EU Cookie Law plugin and prioritize remediation based on the CVSS score. The urgency for action is classified as medium, and organizations should address this vulnerability in their priority patch cycle.
As the vulnerability is not actively exploited in the wild, it provides an opportunity for organizations to implement patches and mitigations before it can be targeted by attackers.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects the Easy EU Cookie Law plugin versions from n/a through 1.3.3.1. Organizations using affected versions should prioritize updates to patch this vulnerability.
Mitigation & Remediation
Organizations should apply patches provided by the vendor as soon as they are available. In the meantime, consider implementing web application firewall (WAF) rules to block potential XSS attacks. Regularly review and sanitize user input and output to minimize vulnerabilities.
For further guidance on security practices, organizations can refer to standards in the field, and for testing their security posture, they may consider engaging in penetration testing to identify any additional weaknesses.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual patterns of user input, particularly in areas where user-generated content is displayed. Behavioral anomalies, such as unexpected redirects or script executions, should also be logged and investigated.
Network signatures may need to be updated to detect attempts at XSS attacks targeting this vulnerability. Monitoring system changes related to the Easy EU Cookie Law plugin will also aid in identifying potential exploitation.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability highlights the ongoing risks associated with web application security, particularly in widely used plugins. It represents a pattern where popular tools can introduce serious security issues due to insufficient input validation.
Security teams should learn from this incident by prioritizing secure coding practices and regular security assessments. For more detailed strategies, consider reviewing our penetration testing methodology and implementing a robust vulnerability management program to systematically address potential vulnerabilities.
In conclusion, while CVE-2025-23434 has not yet been exploited, organizations should take proactive steps to mitigate risks and enhance their overall security posture. Regular updates and security practices can help prevent similar vulnerabilities in the future.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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