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.
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| Platforma | Paczka | Podatne wersje | Poprawka w wersji |
|---|---|---|---|
| Wtyczka WordPress | Post Duplicator | <= 3.0.8 | 3.0.9 |
Odnośniki
- Wektor CVSS
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N- Słabość (CWE)
CWE-862- Platforma
- WordPress
- Paczka
Post Duplicator- Ujawniono
- 24.02.2026
- Aktualizacja
- 11.10.2026 10:23
Źródła i licencje
Wordfence Intelligence - e5c86f72-934c-4f3b-ab2a-65df1490ca8a - Wordfence Intelligence
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Copyright 2012-2026 Defiant Inc.
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Historia podatności: Post Duplicator
Wszystkie opisane podatności tej paczki (Wtyczka WordPress), od najnowszej. Widać, czy to jednorazowa wpadka, czy paczka, której trzeba pilnować.
- Wszystkich wpisów
- 10
- Pierwsza → ostatnia
- 04.2016 08.2026
- Bez poprawki
- 0
- Wykorzystywana w atakach
- 0
Rozkład istotności
- Wysoka 2
- Średnia 8
Ujawnienia w latach
- 2017: 0
- 2018: 0
- 2019: 0
- 2020: 0
- 2021: 1
- 2022: 0
- 2023: 1
- 2024: 0
- 2025: 2
- 2026: 5
wcześniej: 1
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Post Duplicator <= 3.0.8 - Missing Authorization to Authenticated (Contributor+) Protected Post Meta Insertion via 'customMetaData' Parameter ten wpis
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