Description

Incorrect Privilege Assignment vulnerability in miniOrange miniorange otp verification miniorange-otp-verification allows Privilege Escalation.This issue affects miniorange otp verification: from n/a through 5.5.7.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "9.8",
  "pubDate": "2026-10-10T19:16:57.187Z",
  "pubdate": "2026-10-10T19:16:57.187Z",
  "executiveSummary": "The miniOrange OTP Verification plugin for WordPress is susceptible to an Incorrect Privilege Assignment vulnerability, which facilitates unauthorized privilege escalation. This security flaw exists due to improper validation of user input or insufficient access control checks during the OTP verification process.\nThe vulnerability affects all versions of the miniorange otp verification plugin from n/a through 5.5.7. By exploiting this flaw, an attacker can manipulate the system to assign elevated permissions or administrative privileges to their account without legitimate authorization.\nThis vulnerability poses a significant risk to the integrity and confidentiality of the affected WordPress installation. An attacker with the ability to escalate privileges can gain full control over the site, modify database contents, inject malicious code, or exfiltrate sensitive user data. Exploitation does not require elevated initial access, making it highly dangerous as it allows unprivileged or low-privileged users to bypass standard security boundaries. Organizations utilizing this plugin are strongly advised to investigate their authentication mechanisms and monitor for unauthorized account modifications while awaiting vendor-supplied patches.",
  "technicalDetails": "The root cause of the vulnerability lies in an insecure implementation of the privilege assignment logic within the miniOrange OTP Verification plugin. In WordPress, plugins often register custom endpoints or hook into existing authentication processes to facilitate identity verification. When these implementations fail to strictly validate the security context of the user triggering the verification workflow, they create a vector for privilege escalation.\nIn the context of version 5.5.7 and earlier, the plugin fails to enforce proper server-side authorization checks when processing OTP verification requests. Specifically, the component responsible for handling the outcome of the verification flow allows for an attacker to influence the user object properties. By crafting a specific HTTP request that bypasses the intended sequence of the verification process, an attacker can trick the application into elevating the user's role.\nThe attack flow typically involves the following technical steps: First, the attacker initiates a standard OTP verification sequence provided by the plugin. During the verification phase, the attacker intercepts the request—often utilizing an intercepting proxy—and injects additional parameters or modifies existing tokens that the server-side logic uses to grant session permissions. Because the plugin does not verify that the user triggering the completion of the verification flow has the requisite administrative or intended rights to assume higher-level roles, the backend updates the current session's user metadata or database entry with higher privilege levels.\nThis vulnerability is classified as an Incorrect Privilege Assignment, often resulting from a lack of secure session token management or improper use of WordPress API functions like update_user_meta() or wp_update_user(). If the plugin performs an update based solely on the input provided in the verification response without re-validating the user's current session state against the database, it effectively delegates control to the attacker. Post-exploitation impact is severe, as the attacker achieves persistence at an administrative level, enabling full administrative access over the WordPress dashboard. This bypasses the Principle of Least Privilege and allows the actor to perform any action the administrator could, including the creation of new backdoors or the exfiltration of the entire site database."
}