CVE-2025-14944

Backup Migration <= 2.0.0 - Missing Authorization to Unauthenticated Backup Upload to Offline Storage

2026-04-06 00:00

Strategic Overview

Status: Patched in 2.1.0
Affected Plugin: Backup Migration
Affected Version: <= 2.0.0
CVSS: 5.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2025-14944

View all Backup Migration vulnerabilities

At a glance

CVE-2025-14944 is a medium-severity Missing Authorization vulnerability in the Backup Migration WordPress plugin, affecting versions <= 2.0.0. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 2.1.0; sites on affected versions should update now. Disclosed April 2026, reported by 0N0ise.

Vulnerability Overview

The Backup Migration plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 2.0.0. This is due to a missing capability check on the 'initializeOfflineAjax' function and lack of proper nonce verification. The endpoint only validates against hardcoded tokens which are publicly exposed in the plugin's JavaScript. This makes it possible for unauthenticated attackers to trigger the backup upload queue processing, potentially causing unexpected backup transfers to configured cloud storage targets and resource exhaustion.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-862: Missing Authorization

Backup Migration <= 2.0.0 carries this weakness at initializeOfflineAjax, and reaching it takes no account at all. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Backup Migration the fix is 2.1.0: builds <= 2.0.0 are affected, anything from 2.1.0 onward is not.

Remediation

Update to version 2.1.0, or a newer patched version

How does WordSec protect against this?

This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: Backup Migration 2.1.0 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-14944 https://www.wordfence.com/threat-intel/vulnerabilities/id/a2a41a15-0743-48cc-8c92-7cb839fa5847 https://nvd.nist.gov/vuln/detail/CVE-2025-14944

Related records

Same weakness class

Other vulnerabilities in Backup Migration

CVSS Vector

5.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityLow

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