CVE-2026-111406 WordPress MapSVG plugin <= 8.16.1 - Arbitrary File Upload vulnerability

Critical 9.9 Published Updated

Attackers can upload malicious web shells to the server via the MapSVG plugin, leading to remote code execution.

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-2026-111406?

CVE-2026-111406 is a critical vulnerability in PT Norther Lights Production MapSVG, published on 19 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Unrestricted Upload of File with Dangerous Type vulnerability in PT Norther Lights Production MapSVG mapsvg-lite-interactive-vector-maps allows Upload a Web Shell to a Web Server.This issue affects MapSVG: from n/a through 8.16.1.

Weakness: CWE-434

Which versions are affected by CVE-2026-111406?

How do I fix CVE-2026-111406?

No fix has been published for CVE-2026-111406 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-111406 being exploited?

There is no known exploitation of CVE-2026-111406 in the wild and no public exploit code.

Sources

Also known as GHSA-gj56-vq6p-72q4.

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