CVE-2026-104028 Anton Extensions <= 1.2.2 - Unauthenticated Arbitrary File Upload to RCE
Unauthenticated attackers can upload arbitrary PHP files to achieve remote code execution in the Anton Extensions WordPress plugin.
- 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-2026-104028?
CVE-2026-104028 is a critical vulnerability in Unknown Anton Extensions, published on 11 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Anton Extensions WordPress plugin through 1.2.2 does not perform any capability check, nonce verification, or file-type validation before writing attacker-supplied content to an attacker-chosen path, allowing unauthenticated attackers to upload arbitrary PHP files and achieve remote code execution.
Weakness: CWE-434
Which versions are affected by CVE-2026-104028?
How do I fix CVE-2026-104028?
No fix has been published for CVE-2026-104028 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-104028 being exploited?
There is no known exploitation of CVE-2026-104028 in the wild and no public exploit code.
Sources
Also known as GHSA-66q5-xq7g-7g4h.