CVE-2023-4686

WP Customer Reviews <= 3.6.6 - Authenticated (Subscriber+) Sensitive Information Exposure

2023-10-31 00:00

Strategic Overview

Status: Patched in 3.6.7
Affected Plugin: WP Customer Reviews
Affected Version: <= 3.6.6
CVSS: 4.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2023-4686

View all WP Customer Reviews vulnerabilities

At a glance

CVE-2023-4686 is a medium-severity Missing Authorization vulnerability in the WP Customer Reviews WordPress plugin, affecting versions <= 3.6.6. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 3.6.7; sites on affected versions should update now. Disclosed October 2023, reported by Marco Wotschka.

Vulnerability Overview

The WP Customer Reviews plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 3.6.6 via the ajax_enabled_posts function. This can allow authenticated attackers to extract sensitive data such as post titles and slugs, including those of protected and trashed posts and pages in addition to other post types such as galleries.

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 WP Customer Reviews <= 3.6.6 takes an account at Subscriber level or above. 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 WP Customer Reviews the fix is 3.6.7: builds <= 3.6.6 are affected, anything from 3.6.7 onward is not.

Remediation

Update to version 3.6.7, 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: WP Customer Reviews 3.6.7 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-4686 https://www.wordfence.com/threat-intel/vulnerabilities/id/24b9984c-ec33-4492-815b-67a21ac4da0e https://nvd.nist.gov/vuln/detail/CVE-2023-4686

Related records

Other vulnerabilities in WP Customer Reviews

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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