CVE-2026-111862 Rank Math SEO PRO - Supply Chain Compromise

Rank Math SEO PRO for WordPress 3.0.123 packages downloaded between October 15-16, 2026 contain a supply-chain compromise caused by malware in plugin files, letting attackers establish persistent access and expose sensitive credentials, exploit requires activation of affected plugin.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Supply Chain Compromise
Impact
Information Disclosure, Privilege Escalation, Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
19 October 2026
Updated
20 October 2026
Weakness
CWE-506

Vendor fix

Update to version 3.0.124 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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