Critical severity · published Oct 15, 2026
CVE-2026-109686
WordPress Link Whisper Free plugin <= 0.9.7 - PHP Object Injection vulnerability
9.8
CVSS
0.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LW
Link Whisper Free · Link Whisper INC
through 0.9.7 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109686
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109686
patchstack.com
https://patchstack.com/database/wordpress/plugin/link-whisper/vulnerability/wordpress-link-whisper-free-plugin-0-9-7-php-object-injection-vulnerability?_s_id=cve
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