CVE-2022-0633

UpdraftPlus WordPress Backup Plugin < 1.22.3 - Sensitive Information Disclosure

2022-02-17 00:00
Marc-Alexandre Montpas

Strategic Overview

Status
Patched in 1.22.3
Affected Plugin
UpdraftPlus: WP Backup & Migration Plugin
Affected Version
1.16.7 – < 1.22.3
CVSS
6.5Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2022-0633
View all UpdraftPlus: WP Backup & Migration Plugin vulnerabilities

At a glance

CVE-2022-0633 is a medium-severity Missing Authorization vulnerability in the UpdraftPlus WordPress plugin, affecting versions 1.16.7 – < 1.22.3. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity; high confidentiality impact). The issue is fixed in version 1.22.3; sites on affected versions should update now. Disclosed February 2022, reported by Marc-Alexandre Montpas.

Vulnerability Overview

The UpdraftPlus WordPress plugin Free before 1.22.3 and Premium before 2.22.3 do not properly validate a user has the required privileges to access a backup's nonce identifier, which may allow any users with an account on the site (such as subscriber) to download the most recent site & database backup. The UpdraftPlus WordPress Backup Plugin plugin for WordPress is vulnerable to authorization bypass due to a missing capability check when performing a heartbeat function in versions up to 1.22.3. This makes it possible for authenticated attackers with minimal permissions such as a subscriber to retrieve the path to arbitrary back-up files which can subsequently be downloaded and used to gain sensitive information about the system. This also affects premium versions before before 2.22.3.

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 interaction from a victim user. A successful exploit has high impact on confidentiality.

CWE-862: Missing Authorization

Reaching this weakness in UpdraftPlus 1.16.7 – < 1.22.3 takes a caller who can reach the endpoint. 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 UpdraftPlus the fix is 1.22.3: builds 1.16.7 – < 1.22.3 are affected, anything from 1.22.3 onward is not.

Remediation

Update to version 1.22.3, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: UpdraftPlus 1.22.3 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-0633https://www.wordfence.com/threat-intel/vulnerabilities/id/266b1004-a374-4770-9659-bac3d167b585https://nvd.nist.gov/vuln/detail/CVE-2022-0633

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C