CVE-2026-18594

Advanced Contact form 7 DB <= 2.1.3 - Missing Authorization to Authenticated (Custom+) Unauthorized Data Import via 'import_cf7_id'

2026-09-09 15:19
Jiang CY

Strategic Overview

Status
Unpatched
Affected Plugin
Advanced Contact form 7 DB
Affected Version
<= 2.1.3
CVSS
4.3Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2026-18594
View all Advanced Contact form 7 DB vulnerabilities

At a glance

CVE-2026-18594 is a medium-severity Missing Authorization vulnerability in the Advanced Contact form 7 DB WordPress plugin, affecting versions <= 2.1.3. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Custom level or above. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed September 2026, reported by Jiang CY.

Vulnerability Overview

The Advanced Contact form 7 DB plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.1.3. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with custom-level access and above, to import forged CSV submission records into any Contact Form 7 form managed by the plugin.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-862: Missing Authorization

Reaching this weakness in Advanced Contact form 7 DB <= 2.1.3 takes an account at Custom level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. No fixed build of this plugin is recorded for Advanced Contact form 7 DB yet, so installs running <= 2.1.3 stay exposed until the vendor ships one.

Remediation

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-18594https://www.wordfence.com/threat-intel/vulnerabilities/id/51abaca6-d882-40b8-86b1-e21835566e3bhttps://nvd.nist.gov/vuln/detail/CVE-2026-18594

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C