CVE-2026-11395Network attack vector

Unauthenticated internal-service access via webhook hostname placeholder

Published Jun 18, 2026 · Updated Jun 18, 2026

Server-side request forgery in Mário Valney CF7 to Webhook 5.0.0 and earlier allows remote attackers to access internal services. The pull_the_trigger path substitutes Contact Form 7 field data into an administrator-configured webhook hostname and sends the resulting URL without restricting private, loopback, or link-local destinations. Exploitation requires a publicly accessible affected form and a field placeholder in the webhook URL host segment; successful requests can read or modify data exposed by reachable internal services.

CVSS severity7.2
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in Mário Valney CF7 to Webhook 5.0.0 and earlier allows remote attackers to access internal services. The pull_the_trigger path substitutes Contact Form 7 field data into an administrator-configured webhook hostname and sends the resulting URL without restricting private, loopback, or link-local destinations. Exploitation requires a publicly accessible affected form and a field placeholder in the webhook URL host segment; successful requests can read or modify data exposed by reachable internal services.

The record

CVE
CVE-2026-11395
Published
Jun 18, 2026
Updated
Jun 18, 2026
Vendor
Mário Valney
Product
CF7 to Webhook
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 18, 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 <=5.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mário Valney · CF7 to Webhookversion=0 <=5.0.0

Published CVSS scores

7.2WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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.

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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 exploitUnconfirmed

Weakness, pattern, technique

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

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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