Is this vulnerability remotely exploitable?

Yes. An attacker can exploit it remotely by sending a malicious `/auth/login` link with a crafted callbackUrl and convincing a victim to open it in their browser.

Does exploitation require authentication or special privileges?

Exploitation is most impactful when the victim is authenticated, because injected JavaScript then runs with access to their active session. The attacker themselves does not need an account; they only need the ability to deliver a link to the victim.

What is the safest general fix pattern?

The safest pattern is to centralize handling of redirect/callback parameters and enforce a strict allowlist of valid targets (e.g., predefined path names within the app), rejecting or normalizing anything else before passing it to router or redirect functions.

Severity:

HIGH RISK

(8.8)

DOM-based Open Redirect and XSS (CWE-601) in Homarr Login Callback Handling

CVE-2026-33510

Published:

Apr 6, 2026

Status:

Received

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-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Cross-Site Scripting (DOM-based)

CWE:

CWE-87;CWE-601

Impact:

Client-side Code Execution and Open Redirect

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Cross-Site Scripting (DOM-based)

CWE:

CWE-87;CWE-601

Impact:

Client-side Code Execution and Open Redirect

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.

Get Started

Ship clean & secure code faster

START 14 DAYS FREE TRIAL

BOOK A DEMO

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

DOM-based Open Redirect and XSS (CWE-601) in Homarr Login Callback 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

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare