The UpdraftPlus: WP Backup & Migration Plugin plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.26.4 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.

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Fixes

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History

Thu, 11 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 11 Jun 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Davidanderson
Davidanderson updraftplus: Wp Backup & Migration Plugin
Wordpress
Wordpress wordpress
Vendors & Products Davidanderson
Davidanderson updraftplus: Wp Backup & Migration Plugin
Wordpress
Wordpress wordpress

Thu, 11 Jun 2026 06:45:00 +0000

Type Values Removed Values Added
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 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.
Title UpdraftPlus: WP Backup & Migration Plugin <= 1.26.4 - Unauthenticated Authentication Bypass via UpdraftCentral udrpc
Weaknesses CWE-347
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-06-11T14:37:38.538Z

Reserved: 2026-06-03T21:07:44.434Z

Link: CVE-2026-10795

cve-icon Vulnrichment

Updated: 2026-06-11T14:37:28.713Z

cve-icon NVD

Status : Deferred

Published: 2026-06-11T07:16:26.713

Modified: 2026-06-11T14:42:47.007

Link: CVE-2026-10795

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-11T10:40:08Z

Weaknesses