CVE-2025-23500 is a high-severity vulnerability in the faaiq Simple Custom post type custom field, impacting versions up to and including 1.0.3. This vulnerability allows for improper neutralization of input during web page generation, specifically resulting in reflected cross-site scripting (XSS). This issue poses a significant risk as it enables attackers to manipulate web content viewed by users.
The vulnerability has a CVSS score of 7.1, indicating high severity, and is classified as a network attack with low complexity. The reflected XSS can be exploited by attackers, who may leverage this weakness to execute scripts in the context of the user’s session. This vulnerability's impact on confidentiality, integrity, and availability is assessed as low, but it still necessitates immediate attention.
Organizations utilizing the affected versions should prioritize patching to mitigate risks associated with this vulnerability. The public has yet to confirm any exploits for this CVE. However, the nature of XSS vulnerabilities means that they can be easily adapted for malicious use. Therefore, it is crucial for security teams to remain vigilant.
Organizations should prioritize patching immediately. It is advisable to monitor web application logs for any signs of exploitation attempts and establish strong input validation measures as part of your security posture.
Vulnerability Details
The vulnerability allows for improper neutralization of input during web page generation, specifically reflected cross-site scripting (XSS). It affects the Simple Custom post type custom field of the plugin, with versions from n/a through 1.0.3 impacted. The CVSS score assigned to this vulnerability is 7.1, categorized as high severity.
The vulnerability was published on January 22, 2025, and has a CWE classification of CWE-79. The last modification to this CVE record occurred on April 23, 2026.
Technical Analysis
The root cause of CVE-2025-23500 lies in the improper handling of user inputs, leading to a failure to sanitize data before rendering it on web pages. Attackers can exploit this by crafting malicious input that, when processed by the server, can execute unwanted scripts in the user's browser.
The attack vector is network-based, with low complexity due to the lack of required privileges for exploitation. User interaction is necessary, as the victim must visit a malicious link. The impact on confidentiality, integrity, and availability is assessed as low, indicating that while it may not lead to significant breaches, it can affect user experience and application trust.
Risk & Impact Analysis
The risk to organizations includes potential manipulation of web content and user session hijacking through reflected XSS. Attackers may leverage this vulnerability to execute scripts that can capture sensitive data or perform actions on behalf of users without their consent.
Given the CVSS score of 7.1, this vulnerability warrants immediate remediation efforts. Organizations should assess their exposure and apply patches as soon as they are available. The potential for exploitation underscores the importance of input validation and robust security practices.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of the Simple Custom post type custom field plugin prior to 1.0.4 are affected by this vulnerability. Organizations using versions 1.0.3 and earlier should update immediately to the latest patched version to mitigate the risk.
Mitigation & Remediation
To remediate this vulnerability, organizations should update the Simple Custom post type custom field plugin to version 1.0.4 or later. If an immediate update is not possible, consider applying input sanitization and output encoding to prevent XSS attacks until the patch is applied.
Organizations should also implement network controls to restrict access to the affected application and monitor for any unusual activity that may indicate attempts to exploit this vulnerability. Regular security assessments, including penetration testing, can further strengthen application security.
Detection Guidance
Monitor logs for any anomalous behavior indicating potential XSS attacks. Key indicators include unexpected requests with script tags in user input fields or unusual patterns of user interactions that suggest exploitation attempts.
AppSecure Threat Intelligence Insight
CVE-2025-23500 highlights the continued prevalence of XSS vulnerabilities in web applications, particularly in plugins that may not undergo rigorous security reviews. Organizations must prioritize secure coding practices and regular vulnerability assessments to manage their risk exposure.
This vulnerability serves as a reminder for security teams to remain vigilant against common web application vulnerabilities. Implementing a robust vulnerability management program can help organizations identify and remediate vulnerabilities before they are exploited.
Additionally, organizations should consider adopting a proactive approach such as penetration testing methodology to evaluate the effectiveness of their security controls against such vulnerabilities.
Ultimately, maintaining a security-first mindset is crucial for organizations to defend against evolving threats in the web application landscape.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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