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CRITICAL

DSGVO Google Web Fonts GDPR <= 1.1 - Unauthenticated Arbitrary File Upload via 'fonturl' Parameter

Published Apr 8, 2026

Description

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).

Affected products

Remediation

No remediation recorded yet.

References (6)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner Wordfence
Published Apr 8, 2026
Updated Apr 8, 2026
Reserved Mar 4, 2026
CISA Vulnrichment
Updated Apr 8, 2026
NVD
Status Deferred
Modified Jul 24, 2026
Red Hat
Severity n/a
Public date n/a
ENISA EUVD
Assigner Wordfence
Published Apr 8, 2026
Updated Apr 8, 2026
Exploited since n/a
EUVD-2026-20104