CVE-2025-69030: Backpack Traveler Auth Bypass Vulnerability

CVE-2025-69030 Overview

CVE-2025-69030 is an Insecure Direct Object Reference (IDOR) vulnerability in the Mikado-Themes Backpack Traveler WordPress theme by Qodeinteractive. The flaw is an Authorization Bypass Through User-Controlled Key [CWE-639] that allows authenticated attackers to manipulate object identifiers and access resources belonging to other users. The vulnerability affects all versions of Backpack Traveler up to and including 2.10.3. Exploitation requires low privileges and no user interaction, and can be triggered over the network. Successful exploitation results in limited impact to confidentiality integrity, and availability of user-scoped data.

Critical Impact
Authenticated low-privilege users can bypass access control checks and modify or interact with resources belonging to other accounts within the affected WordPress site.

Affected Products

Mikado-Themes Backpack Traveler (backpacktraveler) WordPress theme
Versions from n/a through 2.10.3
WordPress sites bundling the Qodeinteractive Backpack Traveler theme

Discovery Timeline

2025-12-30 - CVE-2025-69030 published to the National Vulnerability Database (NVD)
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-69030

Vulnerability Analysis

The Backpack Traveler theme exposes functionality that accepts a user-controlled key, such as a numeric object identifier, and uses it to retrieve or modify a resource without verifying that the requesting user owns the target object. Because the authorization check relies solely on the presence of a valid session and not on ownership of the referenced object, an authenticated attacker can substitute another user's identifier and act on data they should not be able to reach.

The weakness is categorized as [CWE-639] Authorization Bypass Through User-Controlled Key, a classic Insecure Direct Object Reference pattern. The overall impact is bounded: the theme's exposed endpoints permit modification of user-scoped values rather than site-wide administrative actions.

Root Cause

The root cause is missing or incomplete access control validation on parameters that identify server-side objects. The theme trusts client-supplied identifiers and does not compare them against the currently authenticated user's ownership context before performing read or write operations.

Attack Vector

Exploitation occurs over the network against a WordPress site running the vulnerable theme. An attacker authenticates as a low-privilege user, then issues requests to the theme's endpoints while substituting the object identifier with values that belong to other users. Detailed technical write-up is available in the Patchstack advisory for Backpack Traveler.

No public proof-of-concept exploit and no entry in the CISA Known Exploited Vulnerabilities catalog have been recorded for this issue at the time of publication.

Detection Methods for CVE-2025-69030

Indicators of Compromise

Authenticated HTTP requests to Backpack Traveler theme endpoints containing sequential or enumerated numeric identifiers in query strings or POST bodies.
Unexpected modifications to user-owned records in the WordPress database originating from non-owner accounts.
Repeated admin-ajax.php or theme AJAX action calls from a single low-privilege user across many object IDs in a short time window.

Detection Strategies

Review WordPress access logs for parameter tampering patterns targeting theme AJAX actions.
Correlate the authenticated user identifier with the referenced object owner at the application layer to flag mismatches.
Alert on horizontal enumeration behavior where one session iterates through many identifiers belonging to different users.

Monitoring Recommendations

Ingest WordPress web server and application logs into a centralized analytics platform for retention and correlation.
Track spikes in requests to theme endpoints from subscriber-level accounts, which are typically low-volume.
Monitor database audit trails for cross-user writes originating from front-end sessions.

How to Mitigate CVE-2025-69030

Immediate Actions Required

Inventory WordPress deployments and identify sites running the Backpack Traveler theme at version 2.10.3 or earlier.
Restrict registration and low-privilege account creation on affected sites until a fix is applied.
Rotate credentials for any accounts suspected of interacting with tampered identifiers.

Patch Information

At the time of publication, no vendor patch version above 2.10.3 has been recorded in the referenced advisory. Site operators should monitor the Patchstack advisory for Backpack Traveler and the Mikado-Themes vendor channel for a fixed release, and apply it immediately once available.

Workarounds

Deploy a Web Application Firewall (WAF) rule that blocks or challenges requests to Backpack Traveler AJAX actions when the supplied object identifier does not belong to the authenticated user.
Temporarily disable the vulnerable theme features or switch to an unaffected theme if business requirements permit.
Enforce strict role separation and remove unnecessary subscriber or contributor accounts to reduce the pool of potential attackers.

bash

# Configuration example: identify affected sites
wp theme list --format=csv | grep -i backpacktraveler
# Confirm installed version against the affected range (<= 2.10.3)
wp theme get backpacktraveler --field=version