CVE-2025-23836: High Vulnerability in SuryaBhan Custom Coming Soon

CVE-2025-23836 identifies a high-severity reflected Cross-site Scripting (XSS) vulnerability in the SuryaBhan Custom Coming Soon plugin, specifically impacting versions up to 2.2. This vulnerability allows attackers to execute arbitrary scripts in the context of the user's session, posing significant risks to organizations that utilize this plugin. Given the critical nature of the vulnerability, organizations should prioritize patching immediately.

The CVSS score for this vulnerability is 7.1, indicating a high severity level. The attack vector is classified as network-based with low complexity, requiring no privileges, but necessitating user interaction. This combination makes it easier for attackers to exploit the vulnerability. Organizations using affected versions must act swiftly to address this vulnerability.

Risk to organizations includes unauthorized access to sensitive information through reflected XSS attacks, which can lead to data theft or manipulation. The urgency for defenders is underscored by the potential for exploitation, making it essential to implement patches and mitigations as soon as possible.

Currently, there is no confirmed public exploit for this vulnerability, and it is not listed in the Known Exploited Vulnerabilities (KEV) catalog. However, organizations should remain vigilant and monitor for any updates regarding potential exploitation.

Vulnerability Details

This vulnerability allows the improper neutralization of input during web page generation, specifically referring to the Cross-site Scripting (XSS) vulnerability that affects the SuryaBhan Custom Coming Soon plugin. The affected versions span from n/a through version 2.2.

The CVSS score of 7.1 highlights the severity of the risk posed by this vulnerability. The primary attack vector is network-based, and the attack complexity is low. Attackers can exploit this vulnerability without needing any privileges, but user interaction is required to trigger the attack. The impacts on confidentiality, integrity, and availability are classified as low.

The vulnerability is identified with CWE-79, which corresponds to improper neutralization of input during web page generation. The vulnerability was published on January 23, 2025, and its status is currently marked as deferred.

Technical Analysis

The root cause of this vulnerability lies in the improper handling of user input by the SuryaBhan Custom Coming Soon plugin. Specifically, the application fails to adequately sanitize input data during web page generation, allowing attackers to inject malicious scripts.

The attack vector is network-based, meaning that an attacker can exploit this vulnerability remotely. The complexity of the attack is classified as low, indicating that an attacker can successfully execute the attack without significant effort. There are no privileges required for an attacker to exploit this vulnerability, but user interaction is necessary to trigger the attack.

The impacts of a successful exploitation include low confidentiality, integrity, and availability implications. This means that while the immediate effects may not be catastrophic, the potential for information theft or manipulation exists.

Risk & Impact Analysis

Real-world deployment risks associated with CVE-2025-23836 can lead to significant security breaches and data theft. Organizations using the SuryaBhan Custom Coming Soon plugin should be particularly concerned about the potential for reflected XSS attacks, which could allow attackers to execute scripts in the context of the user's session.

Risk to organizations includes unauthorized access to user data and the potential for malicious actions taken on behalf of users. Organizations must understand the blast radius potential associated with this vulnerability, as every user interaction could be exploited.

As for the urgency assessment, the CVSS score of 7.1 indicates a high level of urgency. Organizations should address in priority patch cycle to ensure users are protected against potential exploitation of this vulnerability.

Exploitation Status

Affected Versions

All versions prior to vendor patch are affected by this vulnerability, specifically versions from n/a through 2.2 of the SuryaBhan Custom Coming Soon plugin.

Mitigation & Remediation

Organizations should apply the latest patches for the SuryaBhan Custom Coming Soon plugin as soon as they are made available. If immediate patching is not feasible, consider implementing web application firewalls to filter out malicious scripts and sanitize inputs appropriately.

For further guidance on security assessments, organizations can refer to best practices for application security assessment and penetration testing to identify potential security risks.

Detection Guidance

To detect potential exploitation attempts, organizations should monitor for unusual log entries, unexpected behavioral anomalies, and consider implementing network signatures that can detect malicious payloads associated with XSS attacks.

AppSecure Threat Intelligence Insight

The long-term significance of CVE-2025-23836 highlights a persistent trend in web application vulnerabilities where improper input handling leads to XSS attacks. Security teams must adapt their strategies to combat the evolving landscape of vulnerabilities like this.

Organizations should learn from incidents related to this vulnerability to enhance their security posture. Engaging in proactive measures, such as regular security audits and implementing robust security practices, can help mitigate risks.

For a deeper understanding of effective security practices, refer to our guide on penetration testing methodology and ensure a comprehensive security strategy.

Security teams must not only respond to vulnerabilities but also anticipate them by employing a vulnerability management program that continuously assesses and improves their security measures.