CVE-2026-1499: CWE-862 Missing Authorization in revmakx WP Duplicate – WordPress Migration Plugin
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 checks and write arbitrary files to the server via the `handle_upload_single_big_file()` function, ultimately leading to remote code execution.
AI Analysis
Technical Summary
CVE-2026-1499 is a high-severity vulnerability in the WP Duplicate WordPress plugin (up to version 1.1.8) caused by missing authorization (CWE-862) on the process_add_site() AJAX action. Authenticated users with minimal privileges can set the internal prod_key_random_id option, which an unauthenticated attacker can exploit to bypass authentication and upload arbitrary files via the handle_upload_single_big_file() function. This chain of issues allows remote code execution on affected servers. The CVSS 3.1 base score is 8.8, reflecting network attack vector, low attack complexity, low privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows unauthenticated attackers to upload arbitrary files to the server, leading to remote code execution. This compromises the confidentiality, integrity, and availability of the affected WordPress site and potentially the underlying server environment. The vulnerability can be triggered remotely over the network without user interaction, making it highly impactful.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are currently available. Until a patch is released, restrict access to the affected AJAX action and consider disabling or removing the WP Duplicate plugin if it is not essential. Monitor for updates from the vendor revmakx and apply official patches promptly once available.
CVE-2026-1499: CWE-862 Missing Authorization in revmakx WP Duplicate – WordPress Migration Plugin
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 checks and write arbitrary files to the server via the `handle_upload_single_big_file()` function, ultimately leading to remote code execution.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-1499 is a high-severity vulnerability in the WP Duplicate WordPress plugin (up to version 1.1.8) caused by missing authorization (CWE-862) on the process_add_site() AJAX action. Authenticated users with minimal privileges can set the internal prod_key_random_id option, which an unauthenticated attacker can exploit to bypass authentication and upload arbitrary files via the handle_upload_single_big_file() function. This chain of issues allows remote code execution on affected servers. The CVSS 3.1 base score is 8.8, reflecting network attack vector, low attack complexity, low privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows unauthenticated attackers to upload arbitrary files to the server, leading to remote code execution. This compromises the confidentiality, integrity, and availability of the affected WordPress site and potentially the underlying server environment. The vulnerability can be triggered remotely over the network without user interaction, making it highly impactful.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are currently available. Until a patch is released, restrict access to the affected AJAX action and consider disabling or removing the WP Duplicate plugin if it is not essential. Monitor for updates from the vendor revmakx and apply official patches promptly once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-01-27T17:54:40.763Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6985aa16f9fa50a62fee1475
Added to database: 2/6/2026, 8:45:10 AM
Last enriched: 4/17/2026, 11:43:53 AM
Last updated: 5/8/2026, 6:56:26 PM
Views: 170
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