Is CVE-2026-1928 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-1928 being exploited in the wild.

How severe is CVE-2026-1928?

High severity, with a CVSS score of 8.8, published 28 October 2026.

Which products and versions are affected?

Rank Math SEO - AI SEO Tools to Dominate SEO Rankings up to and including 1.0.276.

Is there a fix for CVE-2026-1928?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-1928 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-1928?

Check whether you run Rank Math SEO - AI SEO Tools to Dominate SEO Rankings at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-1928: Rank Math SEO PHP object injection in REST API

CVE-2026-1928 · Severity: high · CVSS 8.8 · Published 2026-10-28

The Rank Math SEO plugin for WordPress is vulnerable to PHP object injection in its REST API, allowing attackers with contributor access to inject malicious objects. By leveraging available code gadget chains, attackers can execute arbitrary code on the server and write webshells to compromise the WordPress installation.

Vendors: Rank Math.

Quick answers

Is CVE-2026-1928 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-1928 being exploited in the wild.
How severe is CVE-2026-1928?: High severity, with a CVSS score of 8.8, published 28 October 2026.
Which products and versions are affected?: Rank Math SEO - AI SEO Tools to Dominate SEO Rankings up to and including 1.0.276.
Is there a fix for CVE-2026-1928?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-1928 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-1928?: Check whether you run Rank Math SEO - AI SEO Tools to Dominate SEO Rankings at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability exists in the updateMeta REST API endpoint, which deserializes untrusted user input without proper validation. Authenticated attackers with Contributor-level permissions or above can inject PHP objects that exploit existing gadget chains in the application to achieve remote code execution and write webshells to the uploads directory.

Affected products

Rank Math SEO - AI SEO Tools to Dominate SEO Rankings up to and including 1.0.276

Timeline

2026-10-28: disclosed

References

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