Is this vulnerability remotely exploitable?

Yes. An attacker can exploit this issue remotely by sending victims crafted URLs that target the vulnerable login page, as long as the SuiteCRM instance is reachable over the network.

Does an attacker need an existing account to exploit this?

No prior authentication is typically required. The login page is usually publicly accessible, and the reflected HTML injection occurs before any authentication checks.

What is the safest general fix pattern for this issue?

The safest pattern is to ensure all user-controlled data that is reflected into the login page is passed through strict, context-aware output encoding and, where feasible, validated against a narrow set of allowed values before being rendered.

Severity:

HIGH RISK

(7.1)

Reflected HTML Injection (CWE-79) in SuiteCRM Login Page

CVE-2026-29100

Published:

Mar 19, 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

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Vulnerability Type

Category:

Cross-Site Scripting (XSS) / HTML Injection

CWE:

CWE-79

Impact:

User Account Compromise and Phishing via Reflected XSS

Severity:

HIGH RISK

(7.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Cross-Site Scripting (XSS) / HTML Injection

CWE:

CWE-79

Impact:

User Account Compromise and Phishing via Reflected XSS

Severity:

HIGH RISK

(7.1)

CVSS Version:

3.1

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Reflected HTML Injection (CWE-79) in SuiteCRM Login Page

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

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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