Is this vulnerability remotely exploitable?

Yes. An attacker can exploit it remotely by sending crafted login URLs (for example, via email or messaging) and convincing users to click them, without needing direct access to the server.

Does an attacker need to be authenticated to exploit this?

No authentication is required to trigger the vulnerability. However, the impact is greater if the victim is already authenticated or logs in after following the malicious link.

What is the safest general fix pattern for this issue?

The safest pattern is to apply strict, context-aware output encoding for any user-controlled data rendered into HTML and to validate query parameters. Use framework-provided escaping helpers and avoid directly embedding raw request parameters into templates.

Severity:

HIGH RISK

(8.1)

Reflected Cross-Site Scripting (CWE-79) in ChurchCRM Login Username Parameter

CVE-2026-39344

Published:

Apr 7, 2026

Status:

Analyzed

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

CRITICAL RISK

CRITICAL

(9.8)

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

Remote Code Execution on the Router

April 12, 2026

CWE-77;CWE-78

CRITICAL RISK

CRITICAL

(9.8)

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

Remote Code Execution on the Router

April 12, 2026

Vulnerability Type

Category:

Cross-Site Scripting (XSS)

CWE:

CWE-79;CWE-80

Impact:

Client-Side Code Execution and Session Compromise

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.0

Vulnerability Type

Category:

Cross-Site Scripting (XSS)

CWE:

CWE-79;CWE-80

Impact:

Client-Side Code Execution and Session Compromise

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.0

Catch This CVE While Code Is Being Written

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Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Reflected Cross-Site Scripting (CWE-79) in ChurchCRM Login Username Parameter

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)

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

CRITICAL RISK

CRITICAL

(9.8)

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

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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