High severity · published Sep 10, 2026
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
7.5
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress · acyba
through 11.0.4 · source: vendor
Affected product
AA
AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress
acyba
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-77807
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-77807
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3679457/
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/19a9b952-84db-4911-bb50-52d74ec01cb8?source=cve
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