CVE-2025-1028 Contact Manager <= 8.6.4 - Unauthenticated Arbitrary Double File Extension Upload

High 8.1 Published Updated

Unauthenticated attackers can upload arbitrary files via a race condition, potentially leading to remote code execution in specific server configurations.

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-2025-1028?

CVE-2025-1028 is a high-severity vulnerability in kleor Contact Manager, published on 5 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Contact Manager plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the contact form upload feature in all versions up to, and including, 8.6.4. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible in specific configurations where the first extension is processed over the final. This vulnerability also requires successfully exploiting a race condition in order to exploit.

Weakness: CWE-434

Which versions are affected by CVE-2025-1028?

How do I fix CVE-2025-1028?

No fix has been published for CVE-2025-1028 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-1028 being exploited?

There is no known exploitation of CVE-2025-1028 in the wild and no public exploit code.

Sources

Also known as GHSA-6vwh-w96v-4q99.

Is CVE-2025-1028 in your software?

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