AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress: Privilege escalation or authentication bypass

AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress is affected by privilege escalation or authentication bypass. Exploitation requires an authenticated subscriber account. A successful request can grant permissions or access that the caller should not possess. The published affected range is <= 10.8.2.

CVE / CNA score 8.8 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress
Plugin slug: an-ultimate-newsletter-plugin-and-marketing-automation-solution-for-wordpress
Affected: <= 10.8.2
Safe version: See mitigation notes
Published: May 20, 2026
Weakness: CWE-862 — Missing Authorization

This CVE was published May 20, 2026 and is one of 2 known issues for this plugin.

What to do

Update, patch or deactivate.

No fixed release is identified. Update AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress when a release after 10.8.2 becomes available; until then, disable and remove it when the site's risk warrants.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

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.

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

References

Primary and upstream sources

Data attribution: This product uses the NVD API but is not endorsed or certified by the NVD.

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