CVE-2026-76793: CWE-287 Improper Authentication in Firebase Authentication
CVE-2026-76793 is an improper authentication vulnerability in the Firebase Authentication WordPress plugin before version 1.7.1. The flaw allows unauthenticated attackers to log in as any user, including administrators, because the plugin does not verify the email address in an authentication token before matching it to a WordPress account and issuing a session.
AI Analysis
Technical Summary
The Firebase Authentication WordPress plugin versions prior to 1.7.1 fail to require verification of the email address contained in an authentication token before associating it with a WordPress user account and issuing a session. This improper authentication (CWE-287) allows attackers without valid credentials to impersonate any user, including those with administrative privileges.
Potential Impact
An attacker can gain unauthorized access to any WordPress user account, including administrator accounts, potentially leading to full site compromise, data exposure, or unauthorized administrative actions.
Mitigation Recommendations
A patch is available that fixes this vulnerability in Firebase Authentication WordPress plugin version 1.7.1 and later. Since this is a cloud service plugin, the vendor manages remediation for the cloud-hosted service. Users should upgrade to version 1.7.1 or later to mitigate this issue.
CVE-2026-76793: CWE-287 Improper Authentication in Firebase Authentication
Description
CVE-2026-76793 is an improper authentication vulnerability in the Firebase Authentication WordPress plugin before version 1.7.1. The flaw allows unauthenticated attackers to log in as any user, including administrators, because the plugin does not verify the email address in an authentication token before matching it to a WordPress account and issuing a session.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Firebase Authentication WordPress plugin versions prior to 1.7.1 fail to require verification of the email address contained in an authentication token before associating it with a WordPress user account and issuing a session. This improper authentication (CWE-287) allows attackers without valid credentials to impersonate any user, including those with administrative privileges.
Potential Impact
An attacker can gain unauthorized access to any WordPress user account, including administrator accounts, potentially leading to full site compromise, data exposure, or unauthorized administrative actions.
Mitigation Recommendations
A patch is available that fixes this vulnerability in Firebase Authentication WordPress plugin version 1.7.1 and later. Since this is a cloud service plugin, the vendor manages remediation for the cloud-hosted service. Users should upgrade to version 1.7.1 or later to mitigate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-19T17:55:46.564Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Is Cloud Service
- true
Threat ID: 6a893cc5acd9273b49a6fea8
Added to database: 08/22/2026, 06:08:05 UTC
Last enriched: 08/22/2026, 06:22:24 UTC
Last updated: 08/22/2026, 07:59:13 UTC
Views: 7
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