MailPress <= 1.5.0 - Missing Authorization to Unauthenticated Contact Updates

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-18437
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-31 10:16:45 UTC
Updated2026-07-31 16:17:05 UTC
DescriptionThe MailerPress – Newsletter, email marketing & AI automation plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the `mailerpress/v1/contact` endpoint in all versions up to, and including, 1.5.0. This makes it possible for unauthenticated attackers to update contact details.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.002970000 probability, percentile 0.219780000 (date 2026-08-01)

Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Mailerpress MailerPress Newsletter Email Marketing AI Automation affected 1.5.0 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/mailerpress/trunk/src/Api/Contacts.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/mailerpress/trunk/src/Api/Contacts.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/159d031b-0362-4625-9d98-39084... [email protected] www.wordfence.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Jakub Lipiński (A3RES) (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-07-30T20:36:58.000ZVendor Notified
CNA2026-07-30T20:21:58.000ZDisclosed

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