CVE-2024-8480 Missing authorization in Image Optimizer, Resizer and CDN – Sirv

High 8.8 Published 6 Sep 2024 Updated 8 Apr 2026

Authenticated contributors can upload arbitrary files due to missing authorization checks, potentially leading to remote code execution on the server.

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-2024-8480?

CVE-2024-8480 is a high-severity missing authorization vulnerability in Image Optimizer, Resizer and CDN – Sirv, published on 6 Sep 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'sirv_save_prevented_sizes' function in all versions up to, and including, 7.2.7. This makes it possible for authenticated attackers, with Contributor-level access and above, to exploit the 'sirv_upload_file_by_chunks_callback' function, which lacks proper file type validation, allowing attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Weakness: CWE-862

Which versions are affected by CVE-2024-8480?

It affects 1 product.

Products include Sirv Sirv.

How do I fix CVE-2024-8480?

No fix has been published for CVE-2024-8480 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2024-8480 being exploited?

There is no known exploitation of CVE-2024-8480 in the wild and no public exploit code.

Sources

Also known as GHSA-cjpq-64wj-gmhm.