The Estatik Real Estate Plugin WordPress plugin before 4.3.4 does not validate the same recipient list that it later uses to address the message sent by its property request form, allowing unauthenticated users to send emails to arbitrary recipients with arbitrary subject, body and Reply-To on sites where the form is configured to route to a custom address.

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Fixes

Solution

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Workaround

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History

Wed, 12 Aug 2026 12:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-345
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 12 Aug 2026 11:45:00 +0000

Type Values Removed Values Added
Description The Estatik Real Estate Plugin WordPress plugin before 4.3.4 does not validate the same recipient list that it later uses to address the message sent by its property request form, allowing unauthenticated users to send emails to arbitrary recipients with arbitrary subject, body and Reply-To on sites where the form is configured to route to a custom address.
Title Estatik Real Estate Plugin < 4.3.4 - Unauthenticated Arbitrary-Recipient Mail Relay via Signed-Value Mismatch
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-08-12T12:08:41.797Z

Reserved: 2026-07-28T09:38:37.599Z

Link: CVE-2026-18044

cve-icon Vulnrichment

Updated: 2026-08-12T12:08:36.436Z

cve-icon NVD

Status : Received

Published: 2026-08-12T12:17:47.443

Modified: 2026-08-12T12:17:47.443

Link: CVE-2026-18044

cve-icon Redhat

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cve-icon OpenCVE Enrichment

No data.

Weaknesses