Post Duplicator <= 3.0.8 - Missing Authorization to Authenticated (Contributor+) Protected Post Meta Insertion via 'customMetaData' Parameter
The Post Duplicator plugin for WordPress is vulnerable to unauthorized arbitrary protected post meta insertion in all versions up to, and including, 3.0.8. This is due to the duplicate_post() function in includes/api.php using $wpdb->insert() directly to the wp_postmeta table instead of WordPress's standard add_post_meta() function, which would call is_protected_meta() to prevent lower-privileged users from setting protected meta keys (those starting with _). This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary protected post meta keys such as _wp_page_template, _wp_attached_file, and other sensitive meta keys on duplicated posts via the customMetaData JSON array parameter in the /wp-json/post-duplicator/v1/duplicate-post REST API endpoint.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Plugin de WordPress | Post Duplicator | <= 3.0.8 | 3.0.9 |
Referencias
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N- Debilidad (CWE)
CWE-862- Plataforma
- WordPress
- Paquete
Post Duplicator- Publicada
- 24.02.2026
- Actualizado
- 11.10.2026 10:23
Fuentes y licencias
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Historial de vulnerabilidades: Post Duplicator
Todas las vulnerabilidades publicadas de este paquete (Plugin de WordPress), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 10
- Primera → última
- 04.2016 08.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 2
- Media 8
Divulgaciones por año
- 2017: 0
- 2018: 0
- 2019: 0
- 2020: 0
- 2021: 1
- 2022: 0
- 2023: 1
- 2024: 0
- 2025: 2
- 2026: 5
antes: 1
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Post Duplicator <= 3.0.8 - Missing Authorization to Authenticated (Contributor+) Protected Post Meta Insertion via 'customMetaData' Parameter esta entrada
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