WordPress Newsletters, Email Marketing, SMS and Popups by Omnisend plugin <= 1.9.0 - Insecure Direct Object References (IDOR) vulnerability

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-97074
StatePUBLISHED
AssignerPatchstack
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-30 13:17:34 UTC
Updated2026-09-30 14:18:13 UTC
DescriptionSubscriber Insecure Direct Object References (IDOR) in Newsletters, Email Marketing, SMS and Popups by Omnisend <= 1.9.0 versions.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

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

Problem Types: CWE-639 | CWE-639 CWE-639 Authorization Bypass Through User-Controlled Key

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.1CNACVSS4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Omnisend Newsletters Email Marketing SMS And Popups By Omnisend affected n/a 1.9.0 custom Not specified

References

ReferenceSourceLinkTags
patchstack.com/database/wordpress/plugin/omnisend/vulnerability/wordpress-ne... [email protected] patchstack.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: Elaprendiz1927 | Patchstack Bug Bounty Program (en)

Additional Advisory Data

Solutions

CNA: Update the WordPress Newsletters, Email Marketing, SMS and Popups by Omnisend plugin to the latest available version (at least 1.9.1).

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