CVE-2025-5182: Vacation Rental Platform Auth Bypass Flaw

CVE-2025-5182 Overview

CVE-2025-5182 is an authorization bypass vulnerability in the Summer Pearl Group Vacation Rental Management Platform up to version 1.0.1. The flaw resides in the Listing Handler component and allows authenticated remote attackers to bypass authorization controls. Exploitation enables unauthorized access or modification of listing data belonging to other users, classifying the issue as an Insecure Direct Object Reference (IDOR) flaw [CWE-639]. The vendor addressed the issue in version 1.0.2.

Critical Impact
Authenticated remote attackers can manipulate listing identifiers to bypass authorization checks and access resources owned by other tenants on the platform.

Affected Products

Summer Pearl Group Vacation Rental Management Platform 1.0.0
Summer Pearl Group Vacation Rental Management Platform 1.0.1
Listing Handler component (all builds prior to 1.0.2)

Discovery Timeline

2025-05-26 - CVE-2025-5182 published to NVD
2025-06-03 - Last updated in NVD database

Technical Details for CVE-2025-5182

Vulnerability Analysis

The vulnerability stems from missing authorization enforcement in the Listing Handler component. The application accepts user-supplied listing identifiers without verifying that the requesting account owns or has permission to access the referenced object. This pattern aligns with Improper Authorization [CWE-285] and Authorization Through User-Controlled Key [CWE-639].

An authenticated attacker can iterate or substitute listing IDs in requests to view or manipulate records that belong to other tenants. The attack requires low privileges and no user interaction, and it can be triggered across the network. Proof-of-concept material referenced in public sources demonstrates how parameter manipulation alone is sufficient to trigger the bypass.

Root Cause

The Listing Handler relies on client-supplied object references to retrieve and modify listings without performing a server-side ownership check. When the platform processes a request, it trusts the supplied identifier and returns or updates the corresponding listing record. The absence of an authorization layer between authentication and data access is the underlying defect.

Attack Vector

The attack vector is network-based and requires a valid low-privilege account on the platform. After authenticating, an attacker modifies a numeric or otherwise predictable listing identifier in an HTTP request to the Listing Handler endpoint. The server returns or operates on the targeted listing without verifying that the authenticated principal owns it. No social engineering or additional exploitation primitives are required.

Technical details and a proof-of-concept are documented in the GitHub PoC Repository and the VulDB entry #310270.

Detection Methods for CVE-2025-5182

Indicators of Compromise

Authenticated HTTP requests to Listing Handler endpoints where the listing identifier does not correspond to any listing owned by the requesting account.
High-frequency sequential or enumerative access patterns against listing IDs from a single session.
Application log entries showing successful listing reads or modifications by accounts that have never previously interacted with those listings.

Detection Strategies

Instrument the Listing Handler to log the authenticated user, target listing owner, and operation, then alert when these do not match.
Correlate session IDs with the set of listing IDs accessed to identify cross-tenant access bursts.
Review web access logs for parameter tampering signatures targeting listing identifier query parameters or path segments.

Monitoring Recommendations

Enable verbose application-tier logging for all read, update, and delete operations on listings, including the requesting principal.
Forward platform logs to a centralized analytics or SIEM platform to baseline normal per-user listing access patterns.
Configure alerts on access to listings outside a user's known scope, and on enumeration patterns against the Listing Handler.

How to Mitigate CVE-2025-5182

Immediate Actions Required

Upgrade Summer Pearl Group Vacation Rental Management Platform to version 1.0.2 or later, per the vendor release page.
Audit application logs for prior cross-tenant access to listings since the platform was deployed.
Rotate session tokens and review user accounts for any unauthorized modifications to listings.

Patch Information

The vendor released version 1.0.2 to address the authorization bypass. Administrators should apply the upgrade through the official release channel documented at the Summer Pearl Group Releases page. No backported patch for the 1.0.x branch prior to 1.0.2 is referenced in available advisories.

Workarounds

If immediate upgrade is not possible, restrict access to the Listing Handler endpoints with network-level access controls or a web application firewall rule that validates listing ownership against the authenticated session.
Temporarily reduce account privileges for non-administrative users until the patched build is deployed.
Disable self-service listing management features in the platform configuration if the deployment allows it.

bash

# Example WAF rule concept: block requests where the path-level listing ID
# does not match an allowlist derived from the authenticated session.
# Pseudocode for a reverse proxy / WAF policy:
#   if request.path matches "/listings/<id>" and
#      <id> not in session.owned_listing_ids:
#       deny 403