Description

Missing Authorization vulnerability in Asgaros Asgaros Forum asgaros-forum allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Asgaros Forum: from n/a through 3.4.0.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "4.3",
  "pubDate": "2026-10-09T12:17:10.513Z",
  "pubdate": "2026-10-09T12:17:10.513Z",
  "executiveSummary": "This vulnerability is classified as a Missing Authorization flaw within the Asgaros Forum plugin for WordPress.\nThe issue permits unauthorized users to perform actions or access resources that should be restricted based on security levels.\nAffected versions include all iterations from n/a through 3.4.0.\nThe security impact is significant, as an attacker with low-level or unauthenticated access may bypass established access control lists (ACLs) to manipulate forum content or settings.\nThis vulnerability stems from incorrectly configured access control checks within the application's authorization logic, failing to validate user permissions before executing sensitive operations.\nExploitation requires no specialized administrative privileges, potentially allowing arbitrary users to gain unauthorized control over restricted forum functions.\nThe risk implication involves a total breakdown of the plugin's authorization model, facilitating unauthorized data modification or administrative misuse.",
  "technicalDetails": "The root cause of the vulnerability lies in improper implementation of access control checks within the Asgaros Forum plugin codebase, specifically concerning how user roles and capabilities are validated during HTTP requests.\nThe software fails to verify the authorization level of the requester when performing sensitive actions. In the context of Asgaros Forum versions 3.4.0 and earlier, the application logic does not adequately enforce restrictions defined by the WordPress user capability system or the plugin's internal security levels.\nThe attack flow commences when an attacker identifies an endpoint or function intended to be restricted to administrators or specific user groups. By crafting a request that invokes these functions directly, the attacker circumvents the intended security gatekeeping mechanisms.\nBecause the application lacks server-side authorization checks for these specific API calls or form submissions, the plugin processes the request under the assumption that the caller is authenticated and possesses the necessary privileges.\nThis lack of validation essentially treats unprivileged requests as authorized, leading to the execution of sensitive operations without consent. The vulnerable components are likely internal PHP classes or handler functions responsible for managing forum settings, user moderation tools, or data modification tasks.\nNetwork exposure is defined by the web-facing nature of the forum. An attacker can exploit this via standard HTTP/HTTPS requests directed at the WordPress site. The payload typically involves manipulating specific parameters within a legitimate request structure to trigger the unauthorized action.\nPost-exploitation, the attacker can leverage these missing checks to perform a variety of actions, such as altering forum configurations, deleting or modifying content, or potentially manipulating other users' data, depending on the scope of the unprotected function. The exploitation does not require advanced technical capabilities, only the identification of the unprotected endpoint and the construction of the corresponding request payload."
}