CVE-2025-6851highobserved exploitationCWE-918

CVE-2025-6851: high-severity vulnerability in apos37 Broken Link Notifier

Broken Link Notifier <= 1.3.0 - Unauthenticated Server-Side Request Forgery

Published · Updated

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

58Vexday Risk Score

Patch now. It exploitation observed by VulnCheck and has a working public exploit.

ssvc Actcvss 7.2epss 0.7%
from disclosure to weapon
Published on NVDJul 11
VulnCheckJul 10
The Broken Link Notifier plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.3.0 via the ajax_blinks() function which ultimately calls the check_url_status_code() function. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Related CVEs — apos37 Broken Link Notifier

In the same product, most dangerous first.