Answer in brief
CVE-2026-81754 records a Unknown severity vulnerability in Vigilant <= 2.10.2 - Unauthenticated Stored Cross-Site Scripting. The current sources do not mark it as known exploited. The current feed maps fernandot/Vigilant – 100% Free Security Suite: Firewall, 2FA, Login, Headers, Scanner… (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
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.
The current feed maps fernandot/Vigilant – 100% Free Security Suite: Firewall, 2FA, Login, Headers, Scanner… (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| fernandot/Vigilant – 100% Free Security Suite: Firewall, 2FA, Login, Headers, Scanner…generic | 0 | Not reported |
Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 11, 2026
The Vigilant – 100% Free Security Suite: Firewall, 2FA, Login, Headers, Scanner… plugin for WordPress is vulnerable to Stored Cross-Site Scripting via User-Agent Header in all versions up to, and including, 2.10.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The malicious payload is delivered passively by any unauthenticated visitor who triggers a failed login attempt with a crafted User-Agent header, requiring no further interaction from the attacker once stored.
Quoted source text, attributed separately from HOL analysis.