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 ↗

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

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

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