CVE-2026-18594Network attack vector

Authenticated forged record insertion via unchecked form authorization

Published Sep 10, 2026 · Updated Sep 10, 2026

Missing authorization in Advanced Contact form 7 DB 2.1.3 and earlier allows remote authenticated users to import forged form records. The CSV import handler accepts the user-controlled import_cf7_id form identifier and writes uploaded rows without enforcing the account's per-form edit capability. Any authenticated account assigned a custom-level role can insert fabricated submissions into any Contact Form 7 form managed by the plugin.

CVSS severity4.3
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Missing authorization in Advanced Contact form 7 DB 2.1.3 and earlier allows remote authenticated users to import forged form records. The CSV import handler accepts the user-controlled import_cf7_id form identifier and writes uploaded rows without enforcing the account's per-form edit capability. Any authenticated account assigned a custom-level role can insert fabricated submissions into any Contact Form 7 form managed by the plugin.

The record

CVE
CVE-2026-18594
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
Vsourz Digital
Product
Advanced Contact form 7 DB
Classifications
CWE-862, T1565.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <=2.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Vsourz Digital · Advanced Contact form 7 DBversion=0 <=2.1.3

Published CVSS scores

4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1565.003Runtime Data Manipulation

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo