CVE-2023-23893

Simple Giveaways <= 2.46.0 - Missing Authorization via AJAX actions

2023-07-04 00:00
Nguyen Anh Tien

Strategic Overview

Status
Patched in 2.46.1
Affected Plugin
Simple Giveaways – Grow your business, email lists and traffic with contests
Affected Version
<= 2.46.0
CVSS
6.5Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2023-23893
View all Simple Giveaways – Grow your business, email lists and traffic with contests vulnerabilities

At a glance

CVE-2023-23893 is a medium-severity Missing Authorization vulnerability in the Simple Giveaways WordPress plugin, affecting versions <= 2.46.0. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 2.46.1; sites on affected versions should update now. Disclosed July 2023, reported by Nguyen Anh Tien.

Vulnerability Overview

The Simple Giveaways plugin for WordPress is vulnerable to unauthorized actions due to a missing capability check on several AJAX actions in versions up to, and including, 2.46.0. This makes it possible for unauthenticated attackers to perform unauthorized actions allowing them to see available giveaways, save plugin settings, end giveaways and select winners among other things.

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

Reaching this weakness in Simple Giveaways <= 2.46.0 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 Simple Giveaways the fix is 2.46.1: builds <= 2.46.0 are affected, anything from 2.46.1 onward is not.

Remediation

Update to version 2.46.1, 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: Simple Giveaways 2.46.1 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-23893https://www.wordfence.com/threat-intel/vulnerabilities/id/721f8943-5d59-41ee-935e-999dff2e590dhttps://nvd.nist.gov/vuln/detail/CVE-2023-23893

Related records

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