CVE-2026-18197
Received Received - Intake

Cross-Site Scripting (XSS) in Link Library

Publication date: 2026-07-29

Last updated on: 2026-07-29

Assigner: Tenable Network Security, Inc.

Description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Link Library allows Cross-Site Scripting (XSS). This issue affects Link Library: before 7.9.4.

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Meta Information

Published
2026-07-29
Last Modified
2026-07-29
Generated
2026-07-29
AI Q&A
2026-07-29
EPSS Evaluated
N/A
NVD
CVE-2026-18197
EUVD
EUVD-2026-50165

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
yannick_lefebvre link_library to 7.9.4 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This is a reflected Cross-Site Scripting (XSS) vulnerability in the WordPress plugin Link Library affecting versions before 7.9.4. It occurs due to improper neutralization of input during web page generation, allowing attackers to inject malicious scripts via the unauthenticated 'thumbs_rating_add_vote' AJAX handler by exploiting an unsanitized 'likelabel' parameter.

Detection Guidance

To detect this vulnerability, check the version of the Link Library plugin installed on your WordPress site. If the version is below 7.9.4, the system is vulnerable. You can verify the version by inspecting the plugin files or using WordPress admin panel.

Impact Analysis

An attacker could exploit this to execute arbitrary JavaScript in a victim's browser when they interact with a crafted link or page. This may lead to session hijacking, theft of sensitive data like cookies or credentials, or redirection to malicious sites. Users of vulnerable versions are at risk if they visit a page controlled by the attacker.

Compliance Impact

This XSS vulnerability could lead to unauthorized access to user data, violating GDPR's data protection principles (e.g., integrity and confidentiality) and HIPAA's security requirements for protecting health information. Organizations may face compliance penalties if user data is compromised due to this flaw.

Mitigation Strategies

Immediately update the Link Library plugin to version 7.9.4 or later. If updating is not possible, consider disabling the plugin temporarily until an update can be applied.

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