CVE-2024-13798

Post Grid and Gutenberg Blocks – ComboBlocks <= 2.3.5 - Unauthenticated Paid Order Creation

2025-02-21 15:23
wesley (wcraft)

Strategic Overview

Status
Patched in 2.3.6
Affected Plugin
Post Grid
Affected Version
<= 2.3.5
CVSS
5.3Medium
Weakness type
CWE-20 · Improper Input Validation
CVE
CVE-2024-13798
View all Post Grid vulnerabilities

At a glance

CVE-2024-13798 is a medium-severity Improper Input Validation vulnerability in the Post Grid WordPress plugin, affecting versions <= 2.3.5. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 2.3.6; sites on affected versions should update now. Disclosed February 2025, reported by wesley (wcraft).

Vulnerability Overview

The Post Grid and Gutenberg Blocks – ComboBlocks plugin for WordPress is vulnerable to unauthorized order creation in all versions up to, and including, 2.3.5. This is due to insufficient verification on form fields. This makes it possible for unauthenticated attackers to create new orders for products and mark them as paid without actually completing a payment.

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-20: Improper Input Validation

Reaching this weakness in Post Grid <= 2.3.5 takes no account at all. Improper input validation means the application accepts input without confirming it has the form, type or range the code downstream assumes.

The concrete impact depends on where the unvalidated value lands, which is why records in this class range from cosmetic bugs to full compromise. For Post Grid the fix is 2.3.6: builds <= 2.3.5 are affected, anything from 2.3.6 onward is not.

Remediation

Update to version 2.3.6, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Post Grid 2.3.6 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-13798https://www.wordfence.com/threat-intel/vulnerabilities/id/705823ff-e9c3-4b8b-b71c-3b60d0d15b01https://nvd.nist.gov/vuln/detail/CVE-2024-13798

Related records

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