CVE-2026-109686
Received Received - Intake

Deserialization of Untrusted Data in Link Whisper Free

Publication date: 2026-10-15

Last updated on: 2026-10-15

Assigner: Patchstack

Description
Deserialization of Untrusted Data vulnerability in Link Whisper INC Link Whisper Free link-whisper allows Object Injection.This issue affects Link Whisper Free: from n/a through 0.9.7.

CVSS Scores

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Meta Information

Published
2026-10-15
Last Modified
2026-10-15
Generated
2026-10-15
AI Q&A
2026-10-15
EPSS Evaluated
N/A
NVD
CVE-2026-109686
EUVD
EUVD-2026-102053

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Link Whisper INC Link Whisper Free 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Attack-Flow Graph

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Executive Summary

This vulnerability is a PHP Object Injection flaw in the WordPress Link Whisper Free Plugin versions 0.9.7 and below. It allows attackers to inject malicious objects during deserialization, potentially leading to remote code execution or other harmful server-side actions.

Detection Guidance

Detecting this vulnerability requires checking the installed version of the Link Whisper Free plugin. Use WordPress admin panel to verify the plugin version or check the plugin files for version details. No specific commands are provided in the context for direct detection.

Impact Analysis

Attackers could exploit this to manipulate data processing on the server, potentially leading to unauthorized access, data theft, or complete system compromise. The high CVSS score of 9.8 indicates significant risk of severe impact.

Compliance Impact

This vulnerability could lead to data breaches, which may violate GDPR and HIPAA compliance requirements. Organizations may face legal penalties, reputational damage, and loss of trust due to unauthorized data exposure.

Mitigation Strategies

Immediately update the Link Whisper Free plugin to version 0.9.8 or later. If updating is not possible, apply the mitigation rule provided by Patchstack to block attacks until an update is available. Contact your hosting provider or web developer for assistance if needed.

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