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CVE-2026-15413— Link Factory - Backdoor

Quick assessment

Affected
Unknown Link Factory
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress Link Factory是WordPress基金会的一个管理链接的网站组件。 WordPress Link Factory存在处理逻辑错误漏洞，该漏洞源于该插件是一个后门，暴露了操作者控制的REST API，并使用硬编码操作者公钥验证Ed25519签名，可能允许操作者控制受影响系统。

CVSS 10.0 · Critical EPSS 0.52% · P42

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown Link Factory ≤ * affected
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I. Basic Information for CVE-2026-15413

Vulnerability Information
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Vulnerability Title
Link Factory - Backdoor
Source: CVE Program / CVE List V5
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).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Link Factory 处理逻辑错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Link Factory是WordPress基金会的一个管理链接的网站组件。 WordPress Link Factory存在处理逻辑错误漏洞，该漏洞源于该插件是一个后门，暴露了操作者控制的REST API，并使用硬编码操作者公钥验证Ed25519签名，可能允许操作者控制受影响系统。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown Link Factory 0 ~ * -

II. Public POCs for CVE-2026-15413

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III. Intelligence Information for CVE-2026-15413

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Vendor Advisories for CVE-2026-15413 (1)

Same Patch Batch · Unknown · 2026-08-13 · 8 CVEs total

CVE-2026-14332 5.4 MEDIUM Ecwid by Lightspeed Ecommerce Shopping Cart < 7.0.9 - Subscriber+ Store Disconnection via
CVE-2026-14182 Customer Email Verification for WooCommerce < 3.2.6 - Unauthenticated Account Takeover via
CVE-2026-14213 Amelia < 2.4.6 - Provider+ Cross-Customer Appointment Data Disclosure via IDOR
CVE-2026-13328 TLP Food Menu < 6.0.2 - Unauthenticated Reservation Status Modification
CVE-2026-13610 KiviCare < 4.5.2 - Unauthenticated Privilege Escalation via Registration
CVE-2026-18945 WP Helper Premium < 4.7.6 - Unauthenticated Order Data Disclosure and Order Manipulation v
CVE-2026-19088 ShopEngine < 4.9.3 - Customer PII Disclosure via Forced Authentication

IV. Related Vulnerabilities

Same vendor: Unknown

V. Comments for CVE-2026-15413

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