CVE-2023-0447

My YouTube Channel <= 3.0.12.1 - Missing Authorization

2023-01-04 00:00

Strategic Overview

Status: Patched in 3.23.0
Affected Plugin: My YouTube Channel
Affected Version: <= 3.0.12.1
CVSS: 4.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2023-0447

View all My YouTube Channel vulnerabilities

At a glance

CVE-2023-0447 is a medium-severity Missing Authorization vulnerability in the My YouTube Channel WordPress plugin, affecting versions <= 3.0.12.1. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 3.23.0; sites on affected versions should update now. Disclosed January 2023, reported by Marco Wotschka.

Vulnerability Overview

The My YouTube Channel plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the clear_all_cache function in versions up to, and including, 3.0.12.1. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to clear the plugin's cache.

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.

CWE-862: Missing Authorization

Reaching this weakness in My YouTube Channel <= 3.0.12.1 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 My YouTube Channel the fix is 3.23.0: builds <= 3.0.12.1 are affected, anything from 3.23.0 onward is not.

Remediation

Update to version 3.23.0, 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: My YouTube Channel 3.23.0 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-0447 https://www.wordfence.com/threat-intel/vulnerabilities/id/486b6a75-d101-4f3a-8436-6c23dd0ff200 https://nvd.nist.gov/vuln/detail/CVE-2023-0447

Related records

Other vulnerabilities in My YouTube Channel

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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