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medium·Product Based Web Vulnerabilities·Updated Jun 10, 2026

CVE-2026-8839 Scanner

CVE-2026-8839 Scanner - Unauthorized Access to Information vulnerability in WordPress MapPress Maps

Est. Time~10 seconds
Scan TypeSingle Scan
Targetsdomain, subdomain, ipv4
CostFree
3.1k
Times Used
continuous scan runs
5.8k
Continuously Checked
assets under CS
0
Vulnerabilities Found
confirmed findings
References
CVECVE-2026-8839
5.3
CVSSmedium
Exploitable remotely over the internet · no authentication required.

The MapPress Maps for WordPress plugin for WordPress is vulnerable to Authorization Bypass Through User-Controlled Key in all versions up to, and including, 2.96.6. This is due to missing ownership verification in the REST API routes registered via `Mappress_Api::rest_api_init()`, where the GET `/wp-json/mapp/v1/maps/{mapid}` endpoint uses `'permission_callback' => '__return_true'` and the write endpoints (POST update, DELETE, PATCH mutate, POST clone, POST empty_trash) only check the generic `edit_posts` capability without confirming that the requester owns the targeted map — a gap that is not compensated at the model layer, as `Mappress_Map::get()`, `save()`, `delete()`, `mutate()`, and `empty_trash()` all operate on any caller-supplied map ID without an ownership check. This makes it possible for unauthenticated attackers to read sensitive map data — including POI titles, addresses, coordinates, and body content — for any map on the site by enumerating map IDs, and for authenticated attackers with Contributor-level access and above to modify, delete, trash/restore, or clone any map regardless of its author.

Attack Vector
Network
Privileges Req.
None
User Interaction
None
Affected
MapPress Maps for WordPressby chrisvrichardson
0
Updated Sep 10, 2026View on NVD →
Detail

WordPress MapPress Maps is prevalent among website owners and developers who integrate customizable maps into their sites. It's particularly popular with businesses and bloggers who need detailed map functionalities on WordPress-based websites. The software's ease of use and range of options for embedding maps make it favorable for users with varying levels of technical proficiency. Additionally, small businesses often rely on MapPress Maps for location-based services, enriching customer interaction with their products or services. With features allowing support for custom points and geolocation, it is used in e-commerce sites and tourism-focused platforms. The plugin can increase deliveries' efficiency in e-commerce businesses that guide clients directly to operational locations using accurate mapping.

Unauthorized Access to Information poses significant security risks in WordPress MapPress Maps. An implicit failure in authorization allows attackers to read sensitive map data without appropriate permissions. This vulnerability exploits shortcomings in the REST API routes without verifying map ownership. A skilled attacker could exploit this gap by crafting API requests, leading to possible unauthorized access. Additionally, it poses a risk to site integrity, allowing for data manipulation and exposure. The absence of user verification or authentication checks in data-accessing routes is fundamentally problematic.

The technical challenge lies in the absence of ownership verification in the plugin's REST API routes, especially in versions <= 2.96.6. This flaw permits unauthenticated users to access sensitive map data, with potential exposure to unauthorized viewers. By crafting specific API requests, malicious users can override the plugin's restrictions. A fundamental weakness exists in how the plugin fails to restrict specific API calls, leading to potential jeopardization of sensitive data.

Exploiting this vulnerability could lead malevolent actors to read sensitive map information about reputable websites. This unauthorized map data manipulation might result in incorrect business locations appearing for viewers and other substantial misinformation, impacting brand reliability. By distorting data, it risks misleading users and negatively affecting businesses. Such information exposure could further be used for strategic mapping by competitors, ultimately deteriorating business advantages. Consequently, it can increase the breadth of denial in business continuity and customer trust.

REFERENCES

Solution Advice
  • Update WordPress MapPress Maps to the latest version beyond 2.96.6 to patch this vulnerability.
  • Implement robust input validation to ensure secure API requests.
  • Enable detailed logging to track access to map data and ensure any unauthorized access attempts are logged and reviewed.
  • Ensure that strong authentication measures are in place to validate legitimate requests to map resources.
  • Regularly review security configurations and apply further measures as advised by security bulletins or software documentation.

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