Medium severity · published Aug 6, 2026
CVE-2026-14547
Estatik Real Estate Plugin < 4.3.3 - Unauthenticated Arbitrary-Recipient Mail Relay via Request Form
5.3
CVSS
0.3%
EPSS
No
On KEV
Description
The Estatik Real Estate Plugin WordPress plugin before 4.3.3 does not properly enforce its anti-spam check or restrict the recipient routing of its property request form, allowing unauthenticated users to send emails to arbitrary recipients with arbitrary subject, body and Reply-To, effectively using the site as a mail relay for spam or phishing.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ER
Estatik Real Estate Plugin ·
before 4.3.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-14547
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-14547
wpscan.com
https://wpscan.com/vulnerability/5c208be8-57db-4f74-8030-398c1eece293/
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