CVE-2026-0812: Guillaumev LinkedIn Sc

Medium severity, CVSS 4.4. EPSS: 0.2% chance of exploitation in the next 30 days.

The LinkedIn SC plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'linkedin_sc_date_format', 'linkedin_sc_api_key', and 'linkedin_sc_secret_key' parameters in all versions up to, and including, 1.1.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the injected page.

Affected products

• Guillaumev LinkedIn Sc: up to and including 1.1.9

Published 2026-01-14. Last modified 2026-06-17.