CVE-2026-15413: Unknown Link Factory

Critical severity, CVSS 10.0. EPSS: 0.5% chance of exploitation in the next 30 days.

The Link Factory WordPress plugin is a backdoor. Distributed as a "homepage sentence publisher", it exposes an operator-controlled REST API under /wp-json/link-factory/v1/ - authenticated by a detached Ed25519 signature verified against a hardcoded operator public key (except for the health check).

Affected products

• Unknown Link Factory: any version

Published 2026-08-13. Last modified 2026-08-26.