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Vulnerabilities CVE-2026-18044

CVE-2026-18044

Low
Open
TLP:CLEAR

Estatik Real Estate Plugin < 4.3.4 - Unauthenticated Arbitrary-Recipient Mail Relay via Signed-Value Mismatch

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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.

Details

CVSS Score
3.7
EPSS Score
0.10%

1th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Confidence
90%
Published
Aug 12, 2026
Last Modified
Aug 12, 2026
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