CVE-2023-5251

Grid Plus <= 1.3.2 - Missing Authorization to Authenticated (Subscriber+) Grid Layout Add/Update/Delete

2023-10-29 00:00
István Márton

Strategic Overview

Status
Patched in 1.3.3
Affected Plugin
Grid Plus – Unlimited grid layout
Affected Version
<= 1.3.2
CVSS
5.4Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2023-5251
View all Grid Plus – Unlimited grid layout vulnerabilities

At a glance

CVE-2023-5251 is a medium-severity Missing Authorization vulnerability in the Grid Plus WordPress plugin, affecting versions <= 1.3.2. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 1.3.3; sites on affected versions should update now. Disclosed October 2023, reported by István Márton.

Vulnerability Overview

The Grid Plus plugin for WordPress is vulnerable to unauthorized modification of data and loss of data due to a missing capability check on the 'grid_plus_save_layout_callback' and 'grid_plus_delete_callback' functions in versions up to, and including, 1.3.2. This makes it possible for authenticated attackers with subscriber privileges or above, to add, update or delete grid layout. CVE-2023-34014 appears to be a duplicate of this issue.

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

Grid Plus <= 1.3.2 carries this weakness at grid_plus_save_layout_callback, and reaching it 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 Grid Plus the fix is 1.3.3: builds <= 1.3.2 are affected, anything from 1.3.3 onward is not.

Remediation

Update to version 1.3.3, 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: Grid Plus 1.3.3 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-5251https://www.wordfence.com/threat-intel/vulnerabilities/id/d2d34c84-473c-49f8-b55c-c869b5479974https://nvd.nist.gov/vuln/detail/CVE-2023-5251

Related records

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