CVE-2025-23750: High Vulnerability in devbunchuk Custom Widget Creator

CVE-2025-23750 is a high-severity reflected cross-site scripting (XSS) vulnerability that affects the devbunchuk Custom Widget Creator plugin. This vulnerability allows attackers to inject malicious scripts into web pages, which can be executed by users interacting with the affected application. This issue primarily impacts versions of the Custom Widget Creator plugin from n/a through 1.0.5.

With a CVSS score of 7.1, this vulnerability presents a significant risk to organizations. Attackers may leverage this vulnerability to execute arbitrary scripts in the context of users’ browsers, potentially leading to unauthorized actions or data theft. Given the high severity rating, organizations should prioritize patching immediately.

As of now, there are no known exploits associated with this vulnerability, but the potential for exploitation remains a concern. The urgency for defenders is clear, as the impact of a successful XSS attack can lead to severe consequences, including compromised user data and loss of trust.

Organizations need to ensure they apply the latest updates to mitigate the risk posed by this vulnerability. Regular security assessments and adherence to secure coding practices can help prevent similar vulnerabilities in the future.

Vulnerability Details

The vulnerability is categorized as an improper neutralization of input during web page generation, classified under CWE-79. The affected product is the custom-widget-creator plugin, specifically versions up to 1.0.5. The vulnerability was published on February 14, 2025.

The attack vector for this vulnerability is network-based, and it requires user interaction to be successfully exploited. The attack complexity is low, meaning that it is relatively easy for an attacker to exploit the vulnerability with minimal effort.

The impact metrics for this vulnerability indicate low confidentiality, integrity, and availability impacts, but organizations should not underestimate the potential consequences of successful XSS attacks.

Technical Analysis

The root cause of CVE-2025-23750 lies in the lack of proper sanitization of user inputs during web page generation. This oversight allows attackers to inject scripts that can be executed by unsuspecting users. The attack vector is primarily network-based, requiring the victim to visit a maliciously crafted page or link.

The attack complexity is categorized as low, meaning a potential attacker does not need extensive resources or specialized knowledge to exploit this vulnerability. No privileges are required to launch the attack, and user interaction is necessary, making it critical for users to be cautious when clicking on links or interacting with the application.

The confidentiality, integrity, and availability impacts are all low. However, the potential for attackers to execute arbitrary scripts in the user's browser should not be underestimated, as it can lead to significant security breaches.

Risk & Impact Analysis

Risk to organizations includes the potential for unauthorized access to sensitive information, account takeovers, and the spread of malware through compromised user sessions. The blast radius of this vulnerability is significant, as it can affect all users of the affected plugin, leading to widespread consequences.

Organizations should assess their exposure to this vulnerability and take immediate action to patch affected systems. With an EPS score of 0.00096, the probability of exploitation is low, but the potential impact is high. Organizations must remain vigilant and monitor their systems for any unusual activity that may indicate an attempted exploitation.

Given the high severity of this vulnerability, organizations should address it in their priority patch cycle. Regular security audits and user training can also help mitigate risks associated with XSS vulnerabilities.

Exploitation Status

Affected Versions

The vulnerability impacts all versions of the Custom Widget Creator plugin up to and including version 1.0.5. Organizations using this plugin should ensure they are using the latest patched version to avoid potential exploitation.

Mitigation & Remediation

To mitigate the risks associated with CVE-2025-23750, organizations should immediately update the Custom Widget Creator plugin to the latest version. If a patch is not available, consider implementing input validation and output encoding on all user inputs to prevent XSS vulnerabilities.

For further guidance, organizations can refer to best practices in web application penetration testing to identify and remediate similar vulnerabilities.

Regular security assessments and user training are also recommended to enhance overall security posture against such vulnerabilities.

Detection Guidance

To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual activity, particularly around user interactions with the Custom Widget Creator. Look for patterns that indicate attempts to inject scripts or unusual error messages indicating script execution failure.

Behavioral anomalies in user sessions should also be flagged for review, as they may indicate exploitation attempts.

AppSecure Threat Intelligence Insight

CVE-2025-23750 highlights the ongoing challenges organizations face with XSS vulnerabilities. As web applications continue to evolve, the need for robust input validation and output encoding becomes paramount.

This vulnerability serves as a reminder for security teams to regularly review and enhance their security practices to eliminate the risk of similar vulnerabilities. Organizations should also consider adopting a comprehensive vulnerability management program to proactively address security issues.

Additionally, as more organizations adopt cloud solutions, understanding the nuances of cloud penetration testing can further enhance security against evolving threats.

Lastly, organizations should stay informed about emerging security threats and trends to better prepare for potential attacks.