CVE-2026-4283CRITICAL 9.1EPSS p34.3%

CVE-2026-4283CVE-2026-4283

Description

The WP DSGVO Tools (GDPR) plugin for WordPress is vulnerable to unauthorized account destruction in all versions up to, and including, 3.1.38. This is due to the `super-unsubscribe` AJAX action accepting a `process_now` parameter from unauthenticated users, which bypasses the intended email-confirmation flow and immediately triggers irreversible account anonymization. This makes it possible for unauthenticated attackers to permanently destroy any non-administrator user account (password randomized, username/email overwritten, roles stripped, comments anonymized, sensitive usermeta wiped) by submitting the victim's email address with `process_now=1`. The nonce required for the request is publicly available on any page containing the `[unsubscribe_form]` shortcode.

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
EPSS0.43% probability of exploitation · percentile 34.3% · 2026-06-19T12:03:05Z
Published2026-03-24
Last modified2026-04-24

Underlying weaknesses· 1

CWE-862

References

  1. https://plugins.trac.wordpress.org/browser/shapepress-dsgvo/tags/3.1.38/includes/class-sp-dsgvo-ajax-action.php#L69
  2. https://plugins.trac.wordpress.org/browser/shapepress-dsgvo/tags/3.1.38/includes/class-sp-dsgvo-data-collecter.php#L250
  3. https://plugins.trac.wordpress.org/browser/shapepress-dsgvo/tags/3.1.38/includes/models/unsubscriber.php#L24
  4. https://plugins.trac.wordpress.org/browser/shapepress-dsgvo/tags/3.1.38/public/shortcodes/super-unsubscribe/unsubscribe-form-action.php#L39
  5. https://plugins.trac.wordpress.org/browser/shapepress-dsgvo/trunk/public/shortcodes/super-unsubscribe/unsubscribe-form-action.php#L39
  6. https://plugins.trac.wordpress.org/changeset?old_path=/shapepress-dsgvo/tags/3.1.38&new_path=/shapepress-dsgvo/tags/3.1.39
  7. https://www.wordfence.com/threat-intel/vulnerabilities/id/21389122-cb39-45d1-a889-b830d3a55603?source=cve

1

TypeTargetConfidenceTier
WeaknessMissing Authorizationcwe-8620%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.