CarSpot – Dealership Wordpress Classified Theme <= 2.2.3 - Insecure Direct Object Reference

2020-01-27 00:00
R3N0

Strategic Overview

Status
Patched in 2.2.4
Affected Version
<= 2.2.3
CVSS
7.5High
Weakness type
CWE-284 · Improper Access Control
CVE
CVE pending
View all CarSpot – Dealership Wordpress Classified Theme vulnerabilities

At a glance

This record tracks a high-severity Improper Access Control vulnerability in the CarSpot WordPress theme, affecting versions <= 2.2.3. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high availability impact). Exploitation requires no authentication. The issue is fixed in version 2.2.4; sites on affected versions should update now. Disclosed January 2020, reported by R3N0.

Vulnerability Overview

The CarSpot – Dealership Wordpress Classified Theme for WordPress is vulnerable to Insecure Direct Object References in versions up to, and including, 2.2.3 via the 'ad_id' parameter passed via the sb_remove_ad AJAX action. This makes it possible for unauthenticated attackers to delete any posting, page, or ad.

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. A successful exploit has high impact on availability.

CWE-284: Improper Access Control

CarSpot <= 2.2.3 carries this weakness at ad_id, and reaching it takes a caller who can reach the endpoint. Improper access control means the code decides what a caller may do using something other than their actual permissions, so the decision can be wrong without any check appearing to be missing.

Whoever can shape the request decides the answer, so the protected action runs for callers the code never meant to allow. For CarSpot the fix is 2.2.4: builds <= 2.2.3 are affected, anything from 2.2.4 onward is not.

Remediation

Update to version 2.2.4, 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: CarSpot 2.2.4 closes this, and updating the theme is the step that ends it.

  • Login Security
  • Alerts

External References

Related records

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