MailPoet – Newsletters, Email Marketing, and Automation 5.30.0-5.33.0 - Cross-Site Request Forgery

2026-07-21 00:00

Nguyen Ba Khanh

Strategic Overview

Status

Patched in 5.33.1

Affected PluginMailPoet – Newsletters, Email Marketing, and Automation

Affected Version5.30.0 – 5.33.0

CVSS4.3Medium

CVECVE-2026-57626

View all MailPoet – Newsletters, Email Marketing, and Automation vulnerabilities

Vulnerability Overview

The MailPoet – Newsletters, Email Marketing, and Automation plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to 5.30.0-5.33.0. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to perform an unauthorized action via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Technical Analysis

REMEDIATION: Update to version 5.33.1, or a newer patched version --- IDENTIFIER: CWE-352 (Cross-Site Request Forgery (CSRF)) The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

External References

https://www.cve.org/CVERecord?id=CVE-2026-57626 https://www.wordfence.com/threat-intel/vulnerabilities/id/8e1371a5-ed2e-4a1b-901e-8aef4d0d3acf

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

This record contains material that is subject to copyright

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

https://www.cve.org/Legal/TermsOfUse

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/