WP Mail Gateway <= 1.8 - Missing Authorization to Authenticated (Subscriber+) SMTP Configuration Modification via 'wmg_save_provider_config' AJAX Action

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-6963
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-02 05:16:01 UTC
Updated2026-05-02 05:16:01 UTC
DescriptionThe WP Mail Gateway plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the wmg_save_provider_config AJAX action in all versions up to, and including, 1.8. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update SMTP settings and redirect mail which can be used for privilege escalation by triggering a password reset email and using that to access and administrator's account.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

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

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Shahariaazam WP Mail Gateway affected 1.8 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/changeset [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-mail-gateway/trunk/src/Functions.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-mail-gateway/tags/1.8/src/Functions.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-mail-gateway/tags/1.8/src/Bootstrap.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/c7caf1f4-a8dd-4016-91eb-2adbe... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/wp-mail-gateway/trunk/src/Bootstrap.php [email protected] plugins.trac.wordpress.org
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: Nabil Irawan (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-04-25T09:19:21.000ZVendor Notified
CNA2026-05-01T00:00:00.000ZDisclosed
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