CVE-2025-24559 is a high-severity vulnerability identified in the WP Mailster plugin, which is widely used in WordPress applications. This vulnerability allows improper neutralization of input during web page generation, leading to a reflected cross-site scripting (XSS) attack. The potential impact of this vulnerability is significant, as it could allow attackers to execute arbitrary scripts in the context of a user's session, thereby compromising sensitive data.
The vulnerability has a CVSS score of 7.1, classifying it as high severity. This score indicates that the vulnerability can be exploited over the network with low complexity and does not require any privileges. User interaction is required, which means that an attacker would need to trick a user into clicking on a malicious link to exploit this vulnerability.
Organizations using WP Mailster versions up to 1.8.15.0 are at risk and should prioritize patching their systems to prevent possible exploitation. Given the nature of the vulnerability and the potential for misuse, immediate action is necessary to mitigate risks.
No known exploits have been confirmed as being actively used in the wild at this time, but the nature of XSS vulnerabilities means that they can be readily exploited if left unaddressed. Therefore, organizations should act swiftly to remediate the issue.
Organizations should prioritize patching immediately.
Vulnerability Details
The vulnerability is characterized by improper neutralization of input during web page generation, specifically allowing reflected XSS attacks. It affects WP Mailster plugin versions from n/a through 1.8.15.0. The issue was published on February 3, 2025, and is classified under CWE-79.
Technical Analysis
The root cause of this vulnerability lies in the inadequate validation and sanitization of user input, which allows malicious scripts to be executed in the browser of the user. The attack vector is over the network, which results in a low attack complexity since no special skills are required to exploit this vulnerability. The attacker does not need any privileges to execute the attack, but user interaction is required, as the victim must click on a specially crafted link.
Risk & Impact Analysis
The risk to organizations includes potential unauthorized access to sensitive user data and the ability for attackers to impersonate users. The blast radius could be significant, especially for organizations that handle sensitive information through their web applications. Given that the vulnerability has a high CVSS score, organizations should address this issue in their priority patch cycle.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects WP Mailster versions from n/a to 1.8.15.0. All versions prior to vendor patch are susceptible to this reflected XSS vulnerability.
Mitigation & Remediation
To mitigate this vulnerability, organizations should update WP Mailster to the latest version that addresses this issue. If an immediate update is not possible, consider implementing input validation and output encoding practices to sanitize user inputs effectively. Organizations should validate remediation through penetration testing to identify similar weaknesses.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual patterns of user input and validate that user inputs are being correctly sanitized. Additionally, network signatures that indicate XSS attempts should be analyzed for abnormal behavior.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-24559 lies in its representation of common vulnerabilities that arise from insufficient input validation. This incident highlights the necessity for security teams to prioritize secure coding practices and comprehensive testing to prevent similar vulnerabilities. Organizations are encouraged to adopt a proactive security posture and continuously monitor their applications for potential threats. For further insights, security teams can refer to penetration testing methodology and vulnerability management program design to enhance their security frameworks.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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