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HIGH

CVE-2026-1499

WP Duplicate <= 1.1.8 - Authenticated (Subscriber+) Arbitrary File Upload via 'process_add_site' AJAX Action

CVSS v3

8.8

HIGH

EPSS Score

1.1 %

exploit probability, as of 2026-10-04

CISA KEV

No

known exploited

Exploitation

none

SSVC status

Description

The WP Duplicate plugin for WordPress is vulnerable to Missing Authorization leading to Arbitrary File Upload in all versions up to and including 1.1.8. This is due to a missing capability check on the `process_add_site()` AJAX action combined with path traversal in the file upload functionality. This makes it possible for authenticated (subscriber-level) attackers to set the internal `prod_key_random_id` option, which can then be used by an unauthenticated attacker to bypass authentication chec

Technical details

Published
2026-02-06
Last Modified
2026-04-14

Frequently asked questions

What is CVE-2026-1499?

The WP Duplicate plugin for WordPress is vulnerable to Missing Authorization leading to Arbitrary File Upload in all versions up to and including 1.1.8. This is due to a missing capability check on the `process_add_site()` AJAX action combined with path traversal in the file upload functionality. This makes it possible for authenticated (subscriber-level) attackers to set the internal `prod_key_random_id` option, which can then be used by an unauthenticated attacker to bypass authentication chec

Is CVE-2026-1499 actively exploited?

Active exploitation of CVE-2026-1499 has not been confirmed. Its EPSS score was 1.1% on 2026-10-04, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-1499?

CVE-2026-1499 has a CVSS v3 base score of 8.8 (HIGH severity).

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