CVE-2026-3535 (GCVE-0-2026-3535)

Vulnerability from cvelistv5 – Published: 2026-04-08 06:43 – Updated: 2026-04-08 18:04
VLAI?
Title
DSGVO Google Web Fonts GDPR <= 1.1 - Unauthenticated Arbitrary File Upload via 'fonturl' Parameter
Summary
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).
Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
mlfactory DSGVO Google Web Fonts GDPR Affected: 0 , ≤ 1.1 (semver)
Create a notification for this product.
Credits
Nabil Irawan
Show details on NVD website
To clipboard 

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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