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CVE-2025-22514: High Vulnerability in KNR Author List Widget

A high-severity Cross-site Scripting (XSS) vulnerability has been identified in the KNR Author List Widget plugin, affecting versions up to 3.1.1. Organizations using this plugin should prioritize patching to mitigate potential risks.

HIGHCVSS 7.1 · Published January 13, 2025

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CVE-2025-22514 is a high-severity vulnerability categorized as improper neutralization of input during web page generation, specifically a Cross-site Scripting (XSS) issue found in the KNR Author List Widget plugin. This vulnerability allows attackers to exploit reflected XSS, potentially compromising user sessions and sensitive data. The vulnerability is present in all versions of the KNR Author List Widget up to and including version 3.1.1.

With a CVSS score of 7.1, the vulnerability is classified as high severity. Organizations utilizing affected versions of the KNR Author List Widget should address this issue promptly to avoid exploitation. The urgency for patching is underscored by the potential for attackers to leverage this vulnerability to execute arbitrary scripts in the context of a user's browser.

The vulnerability was published on January 13, 2025. Organizations are strongly encouraged to review their use of this plugin and implement necessary updates or mitigations as soon as possible, given the potential impact on web application security.

As of now, there are no known public exploits or proofs of concept associated with this vulnerability, but the absence of such resources does not diminish the risk it poses. Organizations should take proactive measures to secure their installations.

Vulnerability Details

The vulnerability allows attackers to inject malicious scripts into web pages viewed by users. The improper handling of user input can result in XSS attacks, where the attacker can execute scripts in the context of the victim's browser. The CVSS score of 7.1 indicates a high risk, primarily due to the ease of exploitation and the potential for significant impact on confidentiality and integrity.

The affected product is the KNR Author List Widget, specifically versions from n/a through 3.1.1. The vulnerability is classified under CWE-79, which pertains to improper neutralization of input during web page generation.

Technical Analysis

The root cause of CVE-2025-22514 lies in the failure to adequately sanitize user input prior to rendering it on web pages. This oversight allows attackers to craft malicious URLs that can execute scripts when users interact with them. The attack vector is primarily over the network, as no local privileges are required, making it accessible to anyone with network access.

User interaction is required to trigger the attack, as victims need to click on crafted links or interact with compromised content. The attack complexity is considered low, allowing even less experienced attackers to exploit this vulnerability effectively.

The impact on confidentiality, integrity, and availability is assessed as low. However, the potential for unauthorized access to sensitive user information through session hijacking or data theft remains a significant concern.

Risk & Impact Analysis

Risk to organizations includes exposure to XSS attacks, leading to potential data breaches and loss of user trust. The vulnerability can serve as a vector for further attacks, including phishing, where attackers can impersonate legitimate users or services.

Given the high severity rating, organizations should prioritize patching immediately. The potential blast radius could affect all users interacting with the compromised web application, making it imperative to mitigate the risk.

The CVSS score reflects a significant threat level, and organizations should assess their exposure and implement necessary security controls to protect against possible exploitation.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

The KNR Author List Widget is affected in all versions prior to the vendor patch, specifically versions from n/a through 3.1.1.

Mitigation & Remediation

Organizations should prioritize patching to the latest version of the KNR Author List Widget plugin to mitigate this vulnerability. If a patch is not immediately available, consider implementing input validation and output encoding as temporary workarounds to reduce exposure to XSS attacks. Network controls should also be enforced to limit access to the application, and application security testing should be conducted regularly to identify and remediate vulnerabilities.

For further guidance on securing web applications, organizations may refer to our application security assessment services.

Detection Guidance

To detect potential exploitation of this vulnerability, organizations should monitor their web server logs for unusual input patterns, especially those that include script tags or other indicators of XSS attempts. Behavioral anomalies in user interactions should also be analyzed to identify any irregular activities.

AppSecure Threat Intelligence Insight

The identification of CVE-2025-22514 highlights the ongoing challenges in securing web applications against XSS vulnerabilities. It underscores the necessity of employing rigorous input validation and output encoding practices during the development process. Security teams should remain vigilant and continuously assess their applications for similar vulnerabilities.

For more insights on application security practices, organizations can explore our API security best practices and penetration testing methodology articles.

Additionally, reviewing our vulnerability management program can help organizations minimize risks associated with known vulnerabilities.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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