CVE-2025-27266 represents a medium-severity vulnerability identified in the Ignacio Perez Hover Image Button plugin, which allows for improper neutralization of input during web page generation, resulting in a potential DOM-based Cross-site Scripting (XSS) attack. The vulnerability affects versions of the Hover Image Button plugin from n/a up to and including 1.1.2, and has a CVSS score of 6.5. This score reflects the vulnerability's moderate impact, which can pose significant risks to organizations utilizing this plugin.
Risk to organizations includes exposure to unauthorized script execution, which can lead to data theft, session hijacking, or other malicious activities. Given the XSS nature of this vulnerability, it is crucial for organizations to be aware of potential exploitation avenues, particularly if user interaction is required to trigger the attack.
As of now, there are no known exploits publicly available for this vulnerability, which may grant organizations a window of opportunity to implement mitigations. However, due to its medium severity, organizations should prioritize addressing this vulnerability in their patch management cycles to mitigate potential risks.
Organizations should prioritize patching immediately. Monitoring for unusual behavior or indicators of compromise can also help in the early detection of potential exploitation attempts.
Vulnerability Details
The official description of CVE-2025-27266 states that the vulnerability allows for improper neutralization of input during web page generation, allowing for DOM-based XSS. The vulnerability is classified under CWE-79, which corresponds to improper neutralization in web applications.
The CVSS score of 6.5 indicates a medium severity, categorized under the following criteria: attack vector is network-based, attack complexity is low, and privileges required are low. User interaction is required to exploit this vulnerability, and the impacts on confidentiality, integrity, and availability are all rated as low.
This vulnerability was published on February 24, 2025, and remains in a deferred status. It is important to keep track of updates related to this vulnerability, as it may evolve over time.
Technical Analysis
The root cause of this vulnerability stems from improper input handling in the Hover Image Button plugin, which fails to adequately sanitize user inputs before rendering them in the web page context. This oversight allows attackers to inject malicious scripts into the rendered web pages, potentially leading to XSS attacks.
The attack vector is network-based, with a low attack complexity, meaning that it does not require advanced skills to exploit. The privileges required are low, allowing any user to potentially execute an attack if they can interact with the web application. User interaction is indeed required, which means that a victim must click on a link or otherwise engage with the vulnerable application component to trigger the exploit.
The impact on confidentiality, integrity, and availability is rated as low. However, despite this rating, successful exploitation can still lead to significant consequences, such as the unauthorized execution of scripts in the context of the affected user’s session.
Risk & Impact Analysis
Organizations utilizing the Hover Image Button plugin should recognize the risks tied to CVE-2025-27266, particularly in environments where user-generated content is a factor. The potential for XSS attacks can lead to a variety of consequences, including data breaches, loss of user trust, and potential legal implications.
The blast radius extends to all users of the affected plugin, making it critical for organizations to assess their exposure. Organizations should prioritize this vulnerability based on its CVSS score, which indicates a medium severity, suggesting that it warrants prompt attention.
Given that the CVSS score is 6.5, organizations should address this in their priority patch cycle. The absence of public exploits currently available does not negate the risk; proactive measures are recommended.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
This vulnerability affects the Hover Image Button plugin from versions n/a up to and including 1.1.2. Organizations using any of these versions should take immediate action to mitigate the risk.
Mitigation & Remediation
To mitigate the risks associated with CVE-2025-27266, organizations should apply the latest patches for the Hover Image Button plugin. If a patch is unavailable, disable the plugin until a secure version can be deployed.
In addition, organizations should conduct a thorough review of their web applications for potential XSS vulnerabilities and implement input validation and output encoding practices to prevent similar issues. For effective validation and testing, organizations should consider utilizing penetration testing services to identify and address vulnerabilities.
Detection Guidance
Organizations should monitor their applications for any abnormal behavior or signs of exploitation attempts. This includes reviewing logs for unusual requests, particularly those that involve user inputs being processed in a manner that could lead to XSS.
Identifying behavioral anomalies can also serve as an indicator of potential exploitation. Security teams should remain vigilant and enhance their monitoring capabilities to detect and respond to such threats promptly.
AppSecure Threat Intelligence Insight
CVE-2025-27266 underscores the persistent risk of XSS vulnerabilities in web applications, highlighting the need for organizations to adopt robust security practices. This vulnerability serves as a reminder of the critical importance of input validation, particularly in plugins that allow user-generated content.
As organizations continue to integrate third-party components, they must also evaluate the security implications associated with each. Regular vulnerability assessments and vulnerability management programs are essential to maintaining a secure environment.
In conclusion, the lessons drawn from CVE-2025-27266 should reinforce the necessity of thorough security practices and continuous monitoring to safeguard against emerging threats. For deeper insights into security strategies, organizations may explore penetration testing methodologies and other security resources available.
By adopting a proactive approach to security vulnerabilities, organizations can significantly reduce their risk exposure and defend against potential attacks.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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