DSGVO Google Web Fonts GDPR <= 1.1 - Unauthenticated Arbitrary File Upload via 'fonturl' Parameter
The DSGVO Google Web Fonts GDPR plugin for WordPress is vulnerable to arbitrary file upload due to missing file type validation in the DSGVOGWPdownloadGoogleFonts() function in all versions up to, and including, 1.1. The function is exposed via a wp_ajax_nopriv_ hook, requiring no authentication. It fetches a user-supplied URL as a CSS file, extracts URLs from its content, and downloads those files to a publicly accessible directory without validating the file type. This makes it possible for unauthenticated attackers to upload arbitrary files including PHP webshells, leading to remote code execution. The exploit requires the site to use one of a handful of specific themes (twentyfifteen, twentyseventeen, twentysixteen, storefront, salient, or shapely).
Betroffene Software
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| Plattform | Paket | Anfällige Versionen | Behoben in |
|---|---|---|---|
| WordPress-Plugin | DSGVO Google Web Fonts GDPR | <= 1.1 | keine Korrektur |
Verweise
- CVSS-Vektor
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Schwäche (CWE)
CWE-434- Plattform
- WordPress
- Paket
DSGVO Google Web Fonts GDPR- Veröffentlicht
- 07.04.2026
- Aktualisiert
- 11.10.2026 10:22
Quellen und Lizenzen
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Schwachstellenhistorie: DSGVO Google Web Fonts GDPR
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