Vulnerability · Published Aug 22, 2026 · Assigned by WPScan
CVE-2026-76793Firebase Authentication < 1.7.1 - Unauthenticated Account Takeover via Firebase Email Claim
High 8.1
In plain English
A high-severity improper authentication in Firebase Authentication from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.5%top 59.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The Firebase Authentication WordPress plugin before 1.7.1 does not require the email address in an authentication token to be verified before matching it to a WordPress account and issuing a session, allowing unauthenticated attackers to log in as any user, including administrators.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | Firebase Authentication | 0 – before 1.7.1 |
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://wpscan.com/vulnerability/0414ef2b-0d97-41c7-9146-f31ace8b66b2/ exploit, vdb-entry, technical-description