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CVE-2026-28149

CRITICAL CVSS 9.8 View on NVD ↗

Description

Unauthenticated PHP Object Injection in Headless Single Sign On <= 1.6 versions.

CVSS Vector

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

References

https://patchstack.com/database/wordpress/plugin/headless-single-sign-on/vulnerability/wordpress-headless-single-sign-on-plugin-1-6-php-object-injection-vulnerability?_s_id=cve

Published: Aug 13, 2026 14:16 UTC Modified: Aug 13, 2026 16:18 UTC