Is this vulnerability remotely exploitable beyond the MailHog UI?

The exploit primarily targets users of the MailHog web interface. An attacker can be remote if they can cause emails to be delivered to MailHog, but the malicious JavaScript runs in the context of the victim's browser when they open the UI.

What level of access does an attacker need to exploit this?

An attacker generally needs the ability to send or route emails to the MailHog instance. They do not need direct access to MailHog itself; however, a user with access to the web UI must view the crafted message or attachment for the attack to succeed.

What is the safest general fix pattern for this issue?

The most robust fix is to ensure all email- and attachment-derived data is properly escaped before rendering, avoid executing or inlining untrusted HTML, and prefer plain-text or download-only handling of attachments by default.

Severity:

HIGH RISK

(7.2)

Stored Cross-Site Scripting (CWE-79) in MailHog Email Attachment Handling

CVE-2022-50908

Published:

Jan 13, 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:

Stored Cross-Site Scripting (XSS)

CWE:

CWE-79

Impact:

Arbitrary Web Actions via Victim's Browser (Potential Account/Session Abuse)

Severity:

HIGH RISK

(7.2)

CVSS Version:

3.1

Vulnerability Type

Category:

Stored Cross-Site Scripting (XSS)

CWE:

CWE-79

Impact:

Arbitrary Web Actions via Victim's Browser (Potential Account/Session Abuse)

Severity:

HIGH RISK

(7.2)

CVSS Version:

3.1

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355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Stored Cross-Site Scripting (CWE-79) in MailHog Email Attachment Handling

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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