Firebase Authentication < 1.7.1 - Unauthenticated Account Takeover via Firebase Email Claim (CVE-2026-76793) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-76793

Firebase Authentication < 1.7.1 - Unauthenticated Account Takeover via Firebase Email Claim

Answer in brief

CVE-2026-76793 records a Unknown severity vulnerability in Firebase Authentication < 1.7.1 - Unauthenticated Account Takeover via Firebase Email Claim. The current sources do not mark it as known exploited. The current feed maps Unknown/Firebase Authentication (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 22, 2026Updated Aug 22, 2026Source checked Aug 22, 2026First seen by HOL Aug 22, 2026Material review Aug 22, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Unknown/Firebase Authentication (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/Firebase Authenticationgeneric	>=0 <1.7.1	1.7.1

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/Firebase Authentication.
Review the reported fix. Update Unknown/Firebase Authentication to 1.7.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 22, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 22, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 22, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.