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High · 8.8 CVE-2026-1928 EUVD-2026-111576GHSA-f7v4-wpwr-74r2

Rank Math SEO <= 1.0.276 - Authenticated (Contributor+) PHP Object Injection to Remote Code Execution

Published Oct 28, 2026 · Updated Oct 29, 2026 · Assigned by Wordfence

Description

The Rank Math SEO – AI SEO Tools to Dominate SEO Rankings plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.0.276 via deserialization of untrusted input in the updateMeta REST API endpoint. This makes it possible forauthenticated attackers, with Contributor-level access and above, to inject a PHP Object. The additional presence of a POP chain allows attackers to achieve remote code execution by writing a webshell to the uploads directory.

Affected products

VendorProductAffectedFixed
rankmath Rank Math SEO – AI SEO Tools to Dominate SEO Rankings ≤ 1.0.276 —

References