CVE-2026-109686 PUBLISHED

WordPress Link Whisper Free plugin <= 0.9.7 - PHP Object Injection vulnerability

Assigner: Patchstack
Reserved: 13.10.2026 Published: 15.10.2026 Updated: 15.10.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Link Whisper INC
Product	Link Whisper Free
Versions	Default: unaffected affected from 0 to 0.9.7 (incl.)

Solutions

Update the WordPress Link Whisper Free plugin to the latest available version (at least 0.9.8).

Credits

Tarcísio Luchesi(Poystick) | Patchstack Bug Bounty Program finder

References

https://patchstack.com/database/wordpress/plugin/link-whisper/vulnerability/wordpress-link-whisper-free-plugin-0-9-7-php-object-injection-vulnerability?_s_id=cve

Problem Types

Deserialization of Untrusted Data CWE

Impacts

Object Injection