CVE-2025-6851Public exploitNetwork attack vector

Internal service query and modification via arbitrary URLs

Published Jul 11, 2025 · Updated Apr 8, 2026

SSRF in PluginRx Broken Link Notifier for WordPress 1.3.0 and earlier allows remote attackers to query or modify internal services. The ajax_blinks() handler passes attacker-supplied link URLs to check_url_status_code(), which sends outbound requests without restricting their destination. No credentials or user interaction are required; successful requests originate within the WordPress server's network trust boundary.

CVSS severity7.2
High
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in PluginRx Broken Link Notifier for WordPress 1.3.0 and earlier allows remote attackers to query or modify internal services. The ajax_blinks() handler passes attacker-supplied link URLs to check_url_status_code(), which sends outbound requests without restricting their destination. No credentials or user interaction are required; successful requests originate within the WordPress server's network trust boundary.

The record

CVE
CVE-2025-6851
Published
Jul 11, 2025
Updated
Apr 8, 2026
Vendor
PluginRx
Product
Broken Link Notifier
Classifications
CWE-918, CAPEC-664, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PluginRx · Broken Link Notifierversion=0 <=1.3.0

Published CVSS scores

7.2WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
6.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
CAPEC-664Server Side Request Forgery
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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