What is the CVSS score of CVE-2026-5200?

CVE-2026-5200 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of AcyMailing are affected by CVE-2026-5200?

AcyMailing WordPress plugin (versions ≤10.8.2) contains an authenticated privilege escalation vulnerability enabling subscriber-level users to escalate to full administrator access.

AcyMailing CVE-2026-5200

EUVD-2026-31071 HIGH

Missing Authorization (CWE-862)

2026-05-20 Wordfence

GHSA-54rj-qx28-9gcj

WordPress Authentication Bypass

8.8

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

May 20, 2026 - 08:15 vuln.today

DescriptionNVD

The AcyMailing - An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 10.8.2. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to modify privileged AcyMailing configuration, export subscriber secret keys, and chain these actions into administrator account takeover when a target administrator email address is known.

AnalysisAI

Authenticated privilege escalation in the AcyMailing WordPress plugin (versions up to and including 10.8.2) allows users with subscriber-level access or higher to modify privileged plugin configuration and export subscriber secret keys. By chaining these missing authorization flaws with knowledge of an administrator's email address, attackers can achieve full administrator account takeover. …

RemediationAI

24 hours: Deactivate AcyMailing plugin versions 10.8.2 and earlier across all WordPress installations. 7 days: Audit subscriber-level user accounts for signs of compromise; identify and evaluate replacement email marketing plugins. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-5200 vulnerability details – vuln.today

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AcyMailing CVE-2026-5200

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

RemediationAI

Full analysis requires sign-in

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External POC / Exploit Code