Newsletter - API v1 and v2 addon for Newsletter <= 2.4.5 - Missing Authorization to Email Subscribers Management

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2024-5674
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-06-12 11:15:51 UTC
Updated2026-04-08 19:21:59 UTC
DescriptionThe Newsletter - API v1 and v2 addon plugin for WordPress is vulnerable to unauthorized subscribers management due to PHP type juggling issue on the check_api_key function in all versions up to, and including, 2.4.5. This makes it possible for unauthenticated attackers to list, create or delete newsletter subscribers. This issue affects only sites running the PHP version below 8.0

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

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

EPSS: 0.016160000 probability, percentile 0.817970000 (date 2026-04-09)

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Newsletter Newsletter All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA The Newsletter Team Newsletter - API V1 And V2 Addon For Newsletter affected 2.4.5 semver Not specified

References

ReferenceSourceLinkTags
www.wordfence.com/threat-intel/vulnerabilities/id/ecd9800e-ce0f-45f3-bb66-3690c... af854a3a-2127-422b-91ae-364da2661108 www.wordfence.com Third Party Advisory
www.thenewsletterplugin.com/documentation/developers/newsletter-api-2 af854a3a-2127-422b-91ae-364da2661108 www.thenewsletterplugin.com Product
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: Arkadiusz Hydzik (en)

Additional Advisory Data

SourceTimeEvent
CNA2024-05-21T00:00:00.000ZDiscovered
CNA2024-06-11T22:11:42.000ZDisclosed
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