CVE-2026-15413 — CRITICAL (10.0)

Vulnerability Description

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).

CVSS Score

10.0

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-912

References

https://wpscan.com/vulnerability/4cad269d-0146-4ca9-a1ae-55f02c8e5433/

FAQ

What is CVE-2026-15413?

CVE-2026-15413 is a vulnerability with a CVSS score of 10.0 (CRITICAL). 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 detache...

How severe is CVE-2026-15413?

CVE-2026-15413 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-15413?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.