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

published 2025-07-11 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-21125

cvss: 7.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits: 0; none known, plus a Nuclei check

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.

Patch / fix

fixed in 1 links 1

pluginrx broken_link_notifier 1.3.1

plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3323864%40br… patch

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 15 mo ago (2025-07-11)

Exploit prediction

0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

Nuclei template WordPress Broken Link Notifier < 1.3.1 - Unauthenticated SSRF nuclei detection template

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products

apos37 Broken Link Notifier

Classification

Weakness

CWE-918 Server-Side Request Forgery

Technology feeds

WordPress rss critical rss

References

Sources

CVE List CVE-2025-6851
NVD CVE-2025-6851

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary