CVE-2026-5200

HIGH

AcyMailing <= 10.8.2 - Missing Authorization to Authenticated (Subscriber+) Privilege Escalation via 'acymailing_router'

Title source: cna

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.

References (2)

Core 2

Core References

https://www.wordfence.com/threat-intel/vulnerabilities/id/f8470662-2247-4159-9dac-f13677c94bdf?source=cve

https://plugins.trac.wordpress.org/changeset/3516422/acymailing

Scores

CVSS v3 8.8

EPSS 0.0034

EPSS Percentile 25.1%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-862

Status published

Products (1)

acyba/AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress < 10.8.2

Published May 20, 2026

Tracked Since May 20, 2026