CVE-2026-111829 WordPress WP Mailster plugin <= 1.9.1.0 - Local File Inclusion vulnerability
Attackers can exploit a local file inclusion vulnerability in the WP Mailster plugin to read sensitive files or execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-111829?
CVE-2026-111829 is a medium-severity path traversal vulnerability in WP Mailster, published on 19 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in WP Mailster WP Mailster wp-mailster allows PHP Local File Inclusion.This issue affects WP Mailster: from n/a through 1.9.1.0.
Weakness: CWE-98
Which versions are affected by CVE-2026-111829?
How do I fix CVE-2026-111829?
No fix has been published for CVE-2026-111829 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-2026-111829 being exploited?
There is no known exploitation of CVE-2026-111829 in the wild and no public exploit code.
Sources
Also known as GHSA-jr4g-qw53-whmx.