---
id: CVE-2026-78397
title: >-
  The Link Library WordPress plugin before 7.9.6 does not validate the
  destination of a user-supplied URL before falling back to an unprotected fetch
  when its safe request is rejected, allowing unauthenticated visitors to make
  the site iss…
summary: >-
  The Link Library WordPress plugin before 7.9.6 does not validate the
  destination of a user-supplied URL before falling back to an unprotected fetch
  when its safe request is rejected, allowing unauthenticated visitors to make
  the site iss…
severity: medium
cwe:
  - CWE-918
product: Link Library
affected:
  - link_library >= 7.8.8 < 7.9.6
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T07:16:54.530'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-78397'
references:
  - url: 'https://wpscan.com/vulnerability/7842ef44-582c-40a8-8f3c-cf8abebaf7fb/'
    label: contact@wpscan.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-25T07:01:12.115Z'
cvss: 4
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-25T12:37:14.730842Z'
cvssSource: adp
---

## Overview

The Link Library WordPress plugin before 7.9.6 does not validate the destination of a user-supplied URL before falling back to an unprotected fetch when its safe request is rejected, allowing unauthenticated visitors to make the site issue requests to hosts on its internal network and to learn from the response whether an internal service answered.

Versions below 7.8.8 are covered by CVE-2025-68600; this entry covers 7.8.8 through 7.9.5, where that fix was incomplete. Exploitation requires the site owner to have published the Link Library WordPress plugin before 7.9.6's public link submission form with reciprocal-link validation enabled.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.