--- title: "CVE-2026-104028: Anton Extensions WordPress - Unrestricted File Upload" description: "Anton Extensions WordPress plugin through 1.2.2 contains an unrestricted file upload vulnerability caused by lack of capability check, nonce verification, and file-type validation, letting unauthenticated attackers upload arbitrary PHP files and achieve remote code execution." url: https://panop.io/threat-heartbeat/CVE-2026-104028/ --- # CVE-2026-104028 Anton Extensions WordPress - Unrestricted File Upload Anton Extensions WordPress plugin through 1.2.2 contains an unrestricted file upload vulnerability caused by lack of capability check, nonce verification, and file-type validation, letting unauthenticated attackers upload arbitrary PHP files and achieve remote code execution. CVSS base score 9.8 /10 Critical CISA KEV Not listed Public exploit None known Authentication Not required EPSS 0.55% chance of exploitation in 30 days [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-104028) ## Details Type Unrestricted File Upload Impact Remote Code Execution, Unrestricted File Upload CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Published 11 October 2026 Updated 15 October 2026 Weakness [CWE-434](https://cwe.mitre.org/data/definitions/434.html) ## Vendor fix Update to the latest version of Anton Extensions WordPress plugin. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-104028](https://nvd.nist.gov/vuln/detail/CVE-2026-104028) - [https://wpscan.com/vulnerability/0be8a03e-d854-48db-bdc0-1beead3d7b91/](https://wpscan.com/vulnerability/0be8a03e-d854-48db-bdc0-1beead3d7b91/) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)