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High severity · published Oct 28, 2026
CVE-2026-116391
WordPress GS Logo Slider plugin <= 3.8.9 - PHP Object Injection vulnerability
New
8.8
CVSS
–
EPSS
No
On KEV
Description
Deserialization of Untrusted Data vulnerability in GS Plugins GS Logo Slider gs-logo-slider allows Object Injection.This issue affects GS Logo Slider: from n/a through 3.8.9.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GL
GS Logo Slider · GS Plugins
through 3.8.9 · source: vendor
Affected product
GL
GS Logo Slider
GS Plugins
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116391
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116391
vdb-entry
https://patchstack.com/database/wordpress/plugin/gs-logo-slider/vulnerability/wordpress-gs-logo-slider-plugin-3-8-9-php-object-injection-vulnerability?_s_id=cve