MStore API <= 4.18.3 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary User Meta Update
The MStore API plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.18.3. This is due to the update_user_profile() function in controllers/flutter-user.php processing the 'meta_data' JSON parameter without any allowlist, blocklist, or validation of meta keys. The function reads raw JSON from php://input (line 1012), decodes it (line 1013), authenticates the user via cookie validation (line 1015), and then directly iterates over the user-supplied meta_data array passing arbitrary keys and values to update_user_meta() (line 1080) with no sanitization or restrictions. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify arbitrary user meta fields on their own accounts, including sensitive fields like wp_user_level (to escalate to administrator-level legacy checks), plugin-specific authorization flags (e.g., _wpuf_user_active, aiowps_account_status), and billing/profile fields with unsanitized values (potentially enabling Stored XSS in admin contexts). Note that wp_capabilities cannot be directly exploited this way because it requires a serialized array value, but wp_user_level (a simple integer) and numerous plugin-specific meta keys are exploitable.
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| Platforma | Paczka | Podatne wersje | Poprawka w wersji |
|---|---|---|---|
| Wtyczka WordPress | MStore API – Create Native Android & iOS Apps On The Cloud | <= 4.18.3 | 4.18.4 |
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-639- Platforma
- WordPress
- Paczka
MStore API – Create Native Android & iOS Apps On The Cloud- Ujawniono
- 08.04.2026
- Aktualizacja
- 11.10.2026 10:23
Źródła i licencje
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Historia podatności: MStore API – Create Native Android & iOS Apps On The Cloud
Wszystkie opisane podatności tej paczki (Wtyczka WordPress), od najnowszej. Widać, czy to jednorazowa wpadka, czy paczka, której trzeba pilnować.
- Wszystkich wpisów
- 39
- Pierwsza → ostatnia
- 03.2020 09.2026
- Bez poprawki
- 0
- Wykorzystywana w atakach
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Rozkład istotności
- Krytyczna 14
- Wysoka 3
- Średnia 22
Ujawnienia w latach
- 2020: 1
- 2021: 2
- 2022: 0
- 2023: 17
- 2024: 6
- 2025: 2
- 2026: 11
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MStore API <= 4.18.3 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary User Meta Update ten wpis
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