Vulnerability record/PUBLISHED/Published Nov 6, 2026 22:31:02 UTC

CVE-2026-27356

Missing Authorization vulnerability in ibericode MC4WP mailchimp-for-wp allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MC4WP: from n/a through 4.14.1.

Base score5.3/ 10

SeverityMediumCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes

Base severityMedium

Attack vectorNetworkAV

Attack complexityLowAC

Privileges requiredNonePR

User interactionNoneUI

ScopeUnchangedS

Confidentiality impactNoneC

Integrity impactLowI

Availability impactNoneA

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

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering AuthorityPatchstack

Last updatedNov 6, 2026 22:31:03 UTC

PublishedNov 6, 2026 22:31:02 UTC

ReservedFeb 19, 2026 09:51:48 UTC

Credits

Harry Nguyen | Patchstack Bug Bounty Program