What’s Vulnerable › Vulnerabilities

CVE-2026-77807: AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress <= 11.0.4 - Unauthenticated Arbitrary File Read via 'user[name]' Parameter

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-11 · updated 2026-09-11
• Weakness: CWE-22

Description

The AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 11.0.4 via the `user[name]` Parameter. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Exploitation requires "Embed images" option in AcyMailing configuration being enabled.

Affected products

• acyba AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress: through 11.0.4

References

• https://plugins.trac.wordpress.org/changeset/3679457/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/19a9b952-84db-4911-bb50-52d74ec01cb8?source=cve

Get alerted when CVE-2026-77807 or the next vulnerability affects your stack