CVE-2025-6851

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

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.

Affected

apos37 · Broken Link Notifier

CVSS v3.1 NVD

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 WORDFENCE

7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

EPSS

0.72% chance of exploitation in the next 30 days, 53rd percentile

Nuclei

high · CWE-918

Published

2025-07-11

Updated

2026-04-08

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-6851.yaml

Security advisories

• https://www.wordfence.com/threat-intel/vulnerabilities/id/0f76c9f8-c57a-4875-b581-f67c9c6…
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3323864%…

References

• CVE Record
• NVD entry