CVE-2023-5982

UpdraftPlus <= 1.23.10 - Cross-Site Request Forgery to Google Drive Storage Update

2023-11-07 00:00

Strategic Overview

Status: Patched in 1.23.11
Affected Plugin: UpdraftPlus: WP Backup & Migration Plugin
Affected Version: <= 1.23.10
CVSS: 5.4Medium
Weakness type: CWE-352 · Cross-Site Request Forgery (CSRF)
CVE: CVE-2023-5982

View all UpdraftPlus: WP Backup & Migration Plugin vulnerabilities

At a glance

CVE-2023-5982 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the UpdraftPlus WordPress plugin, affecting versions <= 1.23.10. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.23.11; sites on affected versions should update now. Disclosed November 2023, reported by Nicolas Decayeux.

Vulnerability Overview

The UpdraftPlus: WordPress Backup & Migration Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.23.10. This is due to a lack of nonce validation and insufficient validation of the instance_id on the 'updraftmethod-googledrive-auth' action used to update Google Drive remote storage location. This makes it possible for unauthenticated attackers to modify the Google Drive location that backups are sent to via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. This can make it possible for attackers to receive backups for a site which may contain sensitive information.

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.

CWE-352: Cross-Site Request Forgery (CSRF)

UpdraftPlus <= 1.23.10 carries this weakness at updraftmethod-googledrive-auth, and reaching it takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For UpdraftPlus the fix is 1.23.11: builds <= 1.23.10 are affected, anything from 1.23.11 onward is not.

Remediation

Update to version 1.23.11, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to UpdraftPlus: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: UpdraftPlus 1.23.11 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-5982 https://www.wordfence.com/threat-intel/vulnerabilities/id/e1be11c5-0a44-4816-b6bf-d330cb51dbf3 https://nvd.nist.gov/vuln/detail/CVE-2023-5982

Related records

Same weakness class

Other vulnerabilities in UpdraftPlus: WP Backup & Migration Plugin

CVSS Vector

5.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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