Real Estate 7 <= 3.3.4 - Cross-Site Request Forgery

2023-03-01 00:00
R3N0

Strategic Overview

Status
Patched in 3.3.5
Affected Theme
Real Estate 7 WordPress
Affected Version
<= 3.3.4
CVSS
5.4Medium
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE pending
View all Real Estate 7 WordPress vulnerabilities

At a glance

This record tracks a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Real Estate 7 WordPress WordPress theme, affecting versions <= 3.3.4. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 3.3.5; sites on affected versions should update now. Disclosed March 2023, reported by R3N0.

Vulnerability Overview

The Real Estate 7 theme for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.3.4. This is due to missing or incorrect nonce validation on several of its AJAX actions. This makes it possible for unauthenticated attackers to invoke those functions via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

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.

CWE-352: Cross-Site Request Forgery (CSRF)

Reaching this weakness in Real Estate 7 WordPress <= 3.3.4 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Real Estate 7 WordPress the fix is 3.3.5: builds <= 3.3.4 are affected, anything from 3.3.5 onward is not.

Remediation

Update to version 3.3.5, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Real Estate 7 WordPress: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Real Estate 7 WordPress 3.3.5 closes this, and updating the theme is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.wordfence.com/threat-intel/vulnerabilities/id/007af51b-95b5-4b12-9f74-abf31f6de341

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