CVE-2026-5200: high-severity vulnerability in acyba AcyMailing – An Ultimate Newsletter…
AcyMailing <= 10.8.2 - Missing Authorization to Authenticated (Subscriber+) Privilege Escalation via 'acymailing_router'
Published
Follow this CVE+ Monitor AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 0.3%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
acyba · AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPressRelated CVEs — acyba AcyMailing – An Ultimate Newsletter…
In the same product, most dangerous first.
CVE-2024-7384HIGHAcyMailing <= 9.7.2 - Authenticated (Subscriber+) Arbitrary File Upload via acym_extractArchive FunctionEPSS 1.0%CVE-2026-77807HIGHAcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress <= 11.0.4 - Unauthenticated Arbitrary File Read via 'user[name]' ParameterEPSS 0.9%CVE-2026-15426HIGHAcyMailing <= 10.11.1 - Authenticated (Subscriber+) Missing Authorization to Account Takeover via Notification Template UpdateEPSS 0.7%CVE-2026-3614HIGHAcyMailing 9.11.0 - 10.8.1 - Missing Authorization to Authenticated (Subscriber+) Privilege EscalationEPSS 0.4%CVE-2026-12170MEDIUMAcyMailing <= 10.10.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'alignment' AttributeEPSS 0.3%CVE-2026-102562HIGHAcyMailing <= 11.1.0 - Unauthenticated Stored Cross-Site Scripting via 'customField[]' ParameterEPSS 0.2%