UpdraftPlus: WP Backup & Migration Plugin <= 1.26.4 (free) < 2.26.5 (premium) - Unauthenticated Authentication Bypass via UpdraftCentral udrpc

9.8
Improper Verification of Cryptographic Signature
CVE CVE-2026-10795
CVSS 9.8 (Critical)
Publicly Published June 10, 2026
Last Updated July 14, 2026
Researcher vtim

Description

The UpdraftPlus: WP Backup & Migration Plugin plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.26.4 (free) and versions up to 2.26.5 (premium) via the UpdraftPlus_Remote_Communications_V2::wp_loaded function. This is due to insufficient validation of the remote communications message format, where signature verification can be bypassed and unchecked decryption return values collapse to a predictable all-zero encryption key. This makes it possible for unauthenticated attackers to forge arbitrary RPC commands and run them as the connected administrator, such as uploading and activating a malicious plugin, which ultimately leads to remote code execution.

Wordfence blocked 203,491 attacks targeting this vulnerability in the past 24 hours.

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Vulnerability Details for UpdraftPlus: WP Backup & Migration Plugin

Software Type Plugin
Software Slug updraftplus (view on wordpress.org)
Patched? Yes
Remediation Update to version 1.26.5, or a newer patched version
Affected Version
  • <= 1.26.4
Patched Version
  • 1.26.5

1 other affected software package

Software Type Plugin
Software Slug updraftplus
Patched? Yes
Remediation Update to version 2.26.5, or a newer patched version
Affected Version
  • 2.0 - 2.26.5 (exclusive)
Patched Version
  • 2.26.5

Recent vulnerabilities in UpdraftPlus: WP Backup & Migration Plugin

# Title CVE ID CVSS Researchers Date
1 UpdraftPlus - Backup/Restore <= 1.24.12 - Reflected Cross-Site Scripting CVE-2025-0215 6.1 Asaf Mozes January 15, 2025
2 UpdraftPlus: WP Backup & Migration Plugin 1.23.8 - 1.24.11 - Unauthenticated PHP Object Injection CVE-2024-10957 8.8 Webbernaut January 3, 2025
3 UpdraftPlus <= 1.23.10 - Cross-Site Request Forgery to Google Drive Storage Update CVE-2023-5982 5.4 Nicolas Decayeux November 7, 2023
4 UpdraftPlus <= 1.23.3 - Cross-Site Request Forgery to Cross-Site Scripting via action_authenticate_storage CVE-2023-32960 6.1 Rafie Muhammad May 18, 2023
5 UpdraftPlus 1.22.14 to 1.23.2 and UpdraftPlus (Premium) 2.22.14 to 2.23.2 - Privilege Escalation via updraft_central_ajax_handler 8.8 March 16, 2023
6 Updraft Plus <= 1.22.24 - Information Disclosure via updraft_ajaxrestore 5.3 March 8, 2023
7 UpdraftPlus WordPress Backup Plugin < 1.22.9 Reflected Cross-Site Scripting CVE-2022-0864 6.1 Taurus Omar April 7, 2022
8 UpdraftPlus WordPress Backup Plugin < 1.22.3 - Sensitive Information Disclosure CVE-2022-0633 6.5 Marc-Alexandre Montpas February 17, 2022
9 UpdraftPlus WordPress Backup Plugin <= 1.16.68 - Reflected Cross-Site Scripting via updraft_restore CVE-2021-25089 6.1 ZhongFu Su December 28, 2021
10 UpdraftPlus WordPress Backup Plugin <= 1.16.65 - Reflected Cross-Site Scripting CVE-2021-25022 6.1 Krzysztof Zając December 6, 2021

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