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CVE-2026-82970 – Arbitrary File Upload (Critical RCE Risk) – WP Cookie Notice for GDPR, CCPA & ePriv

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Summary

CVE-2026-82970 is a critical Unrestricted Upload of File with Dangerous Type vulnerability (CWE-434) in the WP Legal Pages "WP Cookie Notice for GDPR, CCPA & ePrivacy Consent" WordPress plugin (package gdpr-cookie-consent). The flaw allows an unauthenticated attacker to upload malicious files to the plugin’s file-upload functionality, and carries the maximum CVSS v3.1 base score of 10.0.

Technical details

  • Root cause: the plugin fails to properly restrict the type of files that can be uploaded through one of its upload-handling functions, classified as CWE-434 (Unrestricted Upload of File with Dangerous Type).
  • Trigger conditions: an attacker sends a crafted upload request to the vulnerable plugin endpoint on a site running an affected version.
  • Attack vector: network-based, requiring no privileges and no user interaction (AV:N/AC:L/PR:N/UI:N).
  • Impact: the CVSS vector reflects a scope change (S:C) with high impact to confidentiality, integrity, and availability (C:H/I:H/A:H), consistent with the ability to place and potentially execute malicious files (e.g., web shells) on the server.

Affected software

  • WP Legal Pages "WP Cookie Notice for GDPR, CCPA & ePrivacy Consent" plugin (package gdpr-cookie-consent): versions up to and including 4.4.1.
  • Version 4.4.2 and later are not affected.

Severity

  • CVSS v3.1 Base Score: 10.0 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: update the WP Cookie Notice for GDPR, CCPA & ePrivacy Consent plugin to version 4.4.2 or later.
  • If a patch cannot be applied immediately: disable or remove the plugin until it can be updated, and restrict/monitor file-upload-related requests to the plugin at the network or WAF layer as an interim measure.

References

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