What is the CVSS score of CVE-2026-0749?

CVE-2026-0749 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of Form Builder are affected by CVE-2026-0749?

CVE-2026-0749 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users.

Is there a public PoC exploit available for CVE-2026-0749?

Yes, a public proof-of-concept exploit is available for CVE-2026-0749. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-0749?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Form Builder CVE-2026-0749

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-01-28 mlhess@drupal.org

Drupal XSS Form Builder

6.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.1 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Mar 09, 2026 - 14:39 vuln.today

Public exploit code

CVE Published

Jan 28, 2026 - 19:16 nvd

MEDIUM 6.1

DescriptionCVE.org

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal Form Builder allows Cross-Site Scripting (XSS).This issue affects Drupal: from 7.X-1.0 through 7.X-1.22.

AnalysisAI

Cross-site scripting (XSS) in Drupal Form Builder 7.x versions 1.0 through 1.22 allows unauthenticated attackers to inject malicious scripts through improperly sanitized form inputs, affecting users who interact with compromised forms. Public exploit code exists for this vulnerability, and no patch is currently available, leaving vulnerable installations at active risk of session hijacking, credential theft, and defacement.

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Form Builder. Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal Form Builder allows Cross-Site Scripting (XSS).This issue affects Drupal: from 7.X-1.0 through 7.X-1.22.

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.