External risk intelligence

miniOrange Social Login Plugin Authentication Bypass Allows Account Takeover

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2026-12761

The vulnerability exists in a WordPress social login plugin. Plugins that handle user registration and authentication are typically exposed to the public internet to allow users to sign up or log in, making the affected functionality a standard internet-facing web application feature.

Authentication Bypass

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This critical vulnerability impacts a WordPress social login plugin, potentially allowing unauthorized access to administrator accounts. The issue stems from how the plugin handles email verification and one-time passwords, enabling unauthenticated attackers to bypass security measures and gain full control of a website.

  • Attackers can take over accounts using a social login flaw.
  • This allows unauthorized access to administrative functions.
  • Confirm relevance and exposure for this login plugin.

Attack Path

How an attacker could exploit the issue

An attacker can gain administrative access to a WordPress site by exploiting a flaw in the miniOrange Social Login plugin. The vulnerability allows an unauthenticated attacker to send a one-time password (OTP) email to any administrator's address. The attacker can then crack this OTP offline by using a leaked transaction hash and the limited OTP space, and submit the cracked OTP to log in as the administrator.

  • Unauthenticated network access is required.
  • Profile completion flow triggers OTP email.
  • Full administrator account takeover risk.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an unauthenticated attacker to bypass authentication and gain full administrator access to a WordPress site. The flaw lies in how the plugin handles email verification during profile completion and OTP validation, enabling an attacker to trigger an OTP email to an administrator, crack the OTP offline, and then use it to log in as that administrator.

  • WordPress administrator account.
  • Attacker triggers OTP and cracks it offline.
  • Full administrator control of the website.

Operational Fix

Recommended remediation, mitigation, and detection steps

This critical vulnerability in a WordPress social login plugin requires immediate attention from the platform team and potentially the application owner. The first step is to confirm the presence of the affected plugin, assess its exposure and business criticality, and identify the accountable owner. Once confirmed, a remediation plan should be developed based on the identified risk.

  • Platform and application owners should lead.
  • Verify plugin presence and exposure.
  • Plan and execute remediation based on risk.

Supplementary metadata

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Frequently asked questions

What is the miniOrange Social Login plugin for WordPress?

The miniOrange Social Login and Register plugin is a WordPress extension designed to simplify user authentication by allowing visitors to sign in or create accounts using external identity providers like Discord, Google, Twitter, and LinkedIn. It sits on top of the standard WordPress registration flow to manage profile completion and user identity verification.

What does CWE-287 mean for CVE-2026-12761?

CWE-287 refers to Improper Authentication. In the context of this CVE, it means the plugin fails to correctly verify the identity of a user during the registration or login process. By accepting an arbitrary email address without proper validation and mishandling the generation of security tokens, the plugin allows an attacker to masquerade as another user, including site administrators.

How does an attacker trigger this authentication bypass?

An attacker initiates the process by interacting with the plugin's profile completion flow. By submitting an administrator's email address, they force the plugin to generate a one-time password (OTP). Because the plugin leaks a transaction hash and uses a small, predictable range of potential OTP values, an attacker can crack the code offline in seconds without needing any special access to the site beforehand.

Is my site at risk if the plugin is installed?

According to Halo Surface Signal, this plugin is primarily designed to be internet-facing to handle user sign-ups, which significantly increases the risk. If your WordPress site has this plugin active and exposed to the public internet, it is reachable by unauthenticated attackers. Sites where the plugin is not installed or the registration features are completely disabled are not susceptible to this specific flaw.

What should I do if I am running this plugin?

You should immediately determine if your installation is running a vulnerable version of the miniOrange plugin. Identify who manages the site and prioritize checking for updates released by the vendor to address this issue. If an update is not immediately available, consider disabling the plugin's registration and social login functionality to remove the attack vector until the software can be patched.

References