CVE-2023-1478 Hummingbird < 3.4.2 - Unauthenticated Path Traversal

Q: What is CVE-2023-1478?

CVE-2023-1478 is a critical path traversal vulnerability in Unknown Hummingbird, published on 10 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Q: Is CVE-2023-1478 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-1478 exists.

Q: How do I fix CVE-2023-1478?

No fix has been published for CVE-2023-1478 yet. Limit exposure of the affected software until one is available.

Critical 9.8 Published 10 Apr 2023 Updated 11 Feb 2025

Unauthenticated attackers can exploit a path traversal flaw in the Hummingbird WordPress plugin to write files to arbitrary locations.

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-2023-1478?

CVE-2023-1478 is a critical path traversal vulnerability in Unknown Hummingbird, published on 10 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Hummingbird WordPress plugin before 3.4.2 does not validate the generated file path for page cache files before writing them, leading to a path traversal vulnerability in the page cache module.

Weakness: CWE-22

Which versions are affected by CVE-2023-1478?

It affects 1 product.

Products include Incsub Hummingbird.

How do I fix CVE-2023-1478?

No fix has been published for CVE-2023-1478 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-2023-1478 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-1478 exists.

Sources

Also known as GHSA-6686-jvr4-7m78.