JetBackup <= 3.1.19.8 - Authenticated (Administrator+) Arbitrary Directory Deletion via Path Traversal in 'fileName' Parameter
The JetBackup – Backup, Restore & Migrate plugin for WordPress is vulnerable to Path Traversal leading to Arbitrary Directory Deletion in versions up to and including 3.1.19.8. This is due to insufficient input validation on the fileName parameter in the file upload handler. The plugin sanitizes the fileName parameter using sanitize_text_field(), which removes HTML tags but does not prevent path traversal sequences like '../'. The unsanitized filename is then directly concatenated in Upload::getFileLocation() without using basename() or validating the resolved path stays within the intended directory. When an invalid file is uploaded, the cleanup logic calls dirname() on the traversed path and passes it to Util::rm(), which recursively deletes the entire resolved directory. This makes it possible for authenticated attackers with administrator-level access to traverse outside the intended upload directory and trigger deletion of critical WordPress directories such as wp-content/plugins, effectively disabling all installed plugins and causing severe site disruption.
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| Platforma | Paczka | Podatne wersje | Poprawka w wersji |
|---|---|---|---|
| Wtyczka WordPress | JetBackup – Backup, Restore & Migrate | <= 3.1.19.8 | 3.1.20.3 |
Odnośniki
- Wektor CVSS
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N- Słabość (CWE)
CWE-22- Platforma
- WordPress
- Paczka
JetBackup – Backup, Restore & Migrate- Ujawniono
- 16.04.2026
- Aktualizacja
- 11.10.2026 10:22
Źródła i licencje
Wordfence Intelligence - 4aa0fa80-05dd-4fe1-b7b5-7ed0cf13053c - Wordfence Intelligence
Copyright 1999-2026 The MITRE Corporation
Copyright 2012-2026 Defiant Inc.
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Historia podatności: JetBackup – Backup, Restore & Migrate
Wszystkie opisane podatności tej paczki (Wtyczka WordPress), od najnowszej. Widać, czy to jednorazowa wpadka, czy paczka, której trzeba pilnować.
- Wszystkich wpisów
- 12
- Pierwsza → ostatnia
- 02.2016 09.2026
- Bez poprawki
- 0
- Wykorzystywana w atakach
- 0
Rozkład istotności
- Krytyczna 1
- Wysoka 3
- Średnia 8
Ujawnienia w latach
- 2017: 2
- 2018: 0
- 2019: 0
- 2020: 3
- 2021: 1
- 2022: 1
- 2023: 0
- 2024: 1
- 2025: 0
- 2026: 3
wcześniej: 1
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JetBackup <= 3.1.19.8 - Authenticated (Administrator+) Arbitrary Directory Deletion via Path Traversal in 'fileName' Parameter ten wpis
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