CVE-2026-1928: rankmath Rank Math SEO – AI SEO Tools to Dominate SEO Rankings (High, CVSS 8.8)
- CVSS
- 8.8 High (v3.1)
- EPSS
- 0.5% chance of exploitation in the next 30 days (higher than 45.1% of CVEs)
- Exploited in the wild
- Not on CISA’s KEV list
- Public exploit
- None reported in public exploit databases
- Weakness
- CWE-502
- Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Published
- Oct 28, 2026
What it is
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.
Description from the National Vulnerability Database.
What to do
Check whether you run rankmath Rank Math SEO – AI SEO Tools to Dominate SEO Rankings, then apply the vendor’s fix or mitigation from the advisories below.
Sources: NVD, FIRST EPSS, CISA KEV, and public exploit databases (availability only). ThreatRoundup reports whether public exploit code exists but never links to it: fake proof-of-concepts that infect security researchers are common. This page updates automatically.