CVE-2023-0441

Gallery Blocks with Lightbox <= 3.0.7 - Missing Authorization in pgc_sgb_action_wizard

2023-03-01 00:00
dc11

Strategic Overview

Status
Patched in 3.0.8
Affected Plugin
SimpLy Gallery
Affected Version
<= 3.0.7
CVSS
8.1High
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2023-0441
View all SimpLy Gallery vulnerabilities

At a glance

CVE-2023-0441 is a high-severity Missing Authorization vulnerability in the SimpLy Gallery WordPress plugin, affecting versions <= 3.0.7. It carries a CVSS score of 8.1 (reachable over the network; low attack complexity; high integrity, availability impact). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 3.0.8; sites on affected versions should update now. Disclosed March 2023, reported by dc11.

Vulnerability Overview

The Gallery Blocks with Lightbox plugin for WordPress is vulnerable to unauthorized data modification due to a missing capability check on the pgc_sgb_action_wizard function called via an AJAX action in versions up to, and including, 3.0.7. This makes it possible for authenticated attackers with subscriber-level access to retrieve and edit post data and metadata, update and retrieve arbitrary options, retrieve post listings, as well as taxonomy terms and post content.

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 integrity, availability.

CWE-862: Missing Authorization

Reaching this weakness in SimpLy Gallery <= 3.0.7 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 SimpLy Gallery the fix is 3.0.8: builds <= 3.0.7 are affected, anything from 3.0.8 onward is not.

Remediation

Update to version 3.0.8, 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: SimpLy Gallery 3.0.8 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-0441https://www.wordfence.com/threat-intel/vulnerabilities/id/7561bce2-bd70-4da3-bbf0-318e59cd1852https://nvd.nist.gov/vuln/detail/CVE-2023-0441

Related records

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