CVE-2026-77807 Path traversal in AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress
Unauthenticated attackers can read arbitrary server files via directory traversal in AcyMailing plugin if image embedding is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-77807?
CVE-2026-77807 is a high-severity path traversal vulnerability in acyba AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress, published on 10 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-22
Which versions are affected by CVE-2026-77807?
How do I fix CVE-2026-77807?
No fix has been published for CVE-2026-77807 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-77807 being exploited?
There is no known exploitation of CVE-2026-77807 in the wild and no public exploit code.
Sources
Also known as GHSA-w97p-m43x-6fh6.