CVE-2026-3223 Zip Slip leading to Arbitrary File Write and Privilege Escalation in Google Web Designer

High 8.4 Published 27 Feb 2026 Updated 4 Mar 2026

Attackers can exploit a Zip Slip vulnerability in Google Web Designer to write arbitrary files and potentially escalate privileges.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-3223?

CVE-2026-3223 is a high-severity path traversal vulnerability in Google Web Designer, published on 27 Feb 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Arbitrary file write & potential privilege escalation exploiting zip slip vulnerability in Google Web Designer.

Weakness: CWE-22

Which versions are affected by CVE-2026-3223?

It affects 1 product.

Products include Google Web Designer.

How do I fix CVE-2026-3223?

No fix has been published for CVE-2026-3223 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-2026-3223 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3223 exists.

Sources

Also known as GHSA-pcr3-6v45-6mc2.