WPGSI: Spreadsheet Integration <= 3.8.3 - Missing Authorization to Unauthenticated Arbitrary Post Creation and Deletion via Forged Base64 Token
The WPGSI: Spreadsheet Integration plugin for WordPress is vulnerable to unauthorized modification and loss of data due to missing capability checks and an insecure authentication mechanism on the wpgsi_callBackFuncAccept and wpgsi_callBackFuncUpdate REST API functions in all versions up to, and including, 3.8.3. Both REST endpoints use permission_callback => '__return_true', allowing unauthenticated access. The plugin's custom token-based validation relies on a Base64-encoded JSON object containing the user ID and email address, but is not cryptographically signed. This makes it possible for unauthenticated attackers to forge tokens using publicly enumerable information (admin user ID and email) to create, modify, and delete arbitrary WordPress posts and pages, granted they know the administrator's email address and an active integration ID with remote updates enabled.
Betroffene Software
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| Plattform | Paket | Anfällige Versionen | Behoben in |
|---|---|---|---|
| WordPress-Plugin | WPGSI: Spreadsheet Integration | <= 3.8.3 | 3.8.4 |
Verweise
- CVSS-Vektor
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N- Schwäche (CWE)
CWE-862- Plattform
- WordPress
- Paket
WPGSI: Spreadsheet Integration- Veröffentlicht
- 24.02.2026
- Aktualisiert
- 11.10.2026 10:22
Quellen und Lizenzen
Wordfence Intelligence - 7598b38b-26b1-4640-9bd7-60613a5f704d - Wordfence Intelligence
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Copyright 2012-2026 Defiant Inc.
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Schwachstellenhistorie: WPGSI: Spreadsheet Integration
Alle veröffentlichten Schwachstellen dieses Pakets (WordPress-Plugin), neueste zuerst. Zeigt, ob es ein einmaliger Ausrutscher ist oder ein Paket, das man im Auge behalten muss.
- Einträge insgesamt
- 7
- Erste → letzte
- 12.2021 02.2026
- Ohne Fix
- 1
- In Angriffen ausgenutzt
- 0
Verteilung nach Schweregrad
- Hoch 2
- Mittel 5
Veröffentlichungen pro Jahr
- 2021: 2
- 2022: 1
- 2023: 1
- 2024: 1
- 2025: 1
- 2026: 1
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WPGSI: Spreadsheet Integration <= 3.8.3 - Missing Authorization to Unauthenticated Arbitrary Post Creation and Deletion via Forged Base64 Token dieser Eintrag
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