Is this vulnerability remotely exploitable over the internet?

Yes, if the application exposes directory listings generated by `list_html` to the internet and allows external users to create or influence filenames in those directories, an attacker can exploit the issue remotely by crafting malicious filenames and luring victims to the listing page.

Does an attacker need authenticated access to exploit this issue?

Not necessarily. Authentication requirements depend on how the application is configured. If file upload or file creation is available to anonymous users in a directory that is publicly listed, the vulnerability can be exploited without authentication. If only authenticated users can upload files or access the directory listing, then attackers must first obtain those privileges.

What is the safest general fix pattern for developers?

The most robust fix pattern is to ensure that all file and directory names are passed through context-appropriate HTML encoding before being rendered, ideally using a templating or response system that escapes by default. Avoid writing raw strings into HTML and treat filenames as untrusted input regardless of their origin.

Severity:

HIGH RISK

(8.8)

Reflected XSS via Unsanitized File Listings (CWE-79) in Salvo list_html Directory View

CVE-2026-22257

Published:

Jan 8, 2026

Status:

Awaiting Analysis

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-306

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

Account Takeover / Loss of Account Control

February 17, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Remote Code Execution on the Server Host

February 17, 2026

Vulnerability Type

Category:

Cross-Site Scripting (XSS)

CWE:

CWE-79

Impact:

Execution of arbitrary JavaScript in users' browsers, enabling session hijacking, credential theft, and client-side data manipulation

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Cross-Site Scripting (XSS)

CWE:

CWE-79

Impact:

Execution of arbitrary JavaScript in users' browsers, enabling session hijacking, credential theft, and client-side data manipulation

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Reflected XSS via Unsanitized File Listings (CWE-79) in Salvo list_html Directory View

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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