CVE-2025-23642 is a medium-severity vulnerability classified as a Cross-site Scripting (XSS) issue affecting the pflonk Sidebar-Content from Shortcode plugin. The vulnerability allows for improper neutralization of input during web page generation, specifically leading to DOM-based XSS. This issue is particularly concerning because it involves user interaction, meaning an attacker could exploit this vulnerability if a victim were to visit a specially crafted page.
With a CVSS score of 6.5, organizations should recognize the risks associated with this vulnerability. Exploits can lead to unauthorized access to sensitive data or manipulation of website content. The potential for exploitation exists in versions from n/a to version 2.0, necessitating immediate attention from security teams.
The vulnerability was published on January 16, 2025, and the status is currently marked as deferred. While there are no known exploits in the wild, the presence of the vulnerability still poses a risk. Organizations using affected versions should prioritize mitigation efforts.
Given the potential impact of this vulnerability, organizations should assess their exposure and consider the urgency of remediation based on their operational context.
Vulnerability Details
The official description states that this vulnerability allows improper neutralization of input during web page generation, resulting in Cross-site Scripting (XSS) vulnerability in pflonk Sidebar-Content from Shortcode. The issue affects versions from n/a through 2.0.
The CVSS score of 6.5 classifies this vulnerability as medium severity. The attack vector is network-based, with low complexity and low privileges required for exploitation, but it does necessitate user interaction.
Technical Analysis
The root cause of CVE-2025-23642 stems from improper input validation during the dynamic generation of web content. The attack vector is network-based, meaning an attacker can exploit the vulnerability remotely. The attack complexity is low, allowing even less skilled attackers to leverage the flaw.
To execute the attack, the attacker requires low privileges and must induce user interaction, for instance, by tricking users into clicking on a malicious link. The impact on confidentiality, integrity, and availability is low, meaning while the risk exists, the direct consequences may be limited.
Risk & Impact Analysis
Risk to organizations includes potential unauthorized access to user data and manipulation of website content. Given the nature of XSS, the blast radius may include all users interacting with the compromised site, leading to broader security implications.
Organizations should assess their operational context and prioritize remediation based on the CVSS score and their exposure to this vulnerability.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Affected versions include Sidebar-Content from Shortcode: from n/a through <= 2.0. Organizations should ensure they are using a patched version to avoid this vulnerability.
Mitigation & Remediation
Organizations should prioritize patching this vulnerability immediately. If a patch is not available, consider implementing workarounds such as input validation and sanitization to mitigate the risk. Regularly review and harden configurations to prevent similar vulnerabilities in the future.
For additional assistance with security testing, organizations can utilize penetration testing services.
Detection Guidance
Monitor logs for unusual behavior associated with user inputs and interactions. Look for signs of XSS attacks, such as script tags or unusual parameters in user input.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-23642 highlights the need for robust input validation practices in web applications. This vulnerability serves as a reminder of the persistent threat posed by XSS attacks, which can easily compromise user data and application integrity.
Security teams should ensure regular security assessments and maintain a strong focus on web application security to identify and remediate vulnerabilities before they can be exploited.
For more insights on improving your security posture, refer to our penetration testing methodology and the importance of a vulnerability management program for ongoing security success.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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