CVE-2026-0749: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal F

Routine

MEDIUM 6.1UPGRADE

CVE-2026-0749 is a medium-severity flaw (CVSS 6.1) affecting form builder. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 86%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-01-28
Last modified	2026-06-17

Publisher (CNA): Drupal.org · Vendor: silence

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-28 19:16 UTCPublished CVE record published
2026-06-17 10:11 UTCUpdated Record last modified

silence form builder UPGRADE

Affected: >= 7.x-1.0 and <= 7.x-1.22

Fixed in: newer than 7.x-1.22

Safe to downgrade to: a release before 7.x-1.0

1. Check installed version

apt-cache policy form-builder || rpm -q form-builder || form-builder --version

2. UPGRADE to newer than 7.x-1.22 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade form-builder

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade form-builder

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 7.x-1.0 (Debian / Ubuntu)

apt-cache madison form-builder sudo apt install form-builder=<VERSION_BEFORE_7.x-1.0> sudo apt-mark hold form-builder

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list form-builder sudo dnf downgrade form-builder-<VERSION_BEFORE_7.x-1.0> sudo dnf versionlock add form-builder

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-0749?

form builder: upgrade to newer than 7.x-1.22. Exact commands for each OS are on this page.

Is CVE-2026-0749 being exploited?

CVE-2026-0749 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-0749 affect?

CVE-2026-0749 affects form builder. Severity is medium (CVSS 6.1). 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.

How urgent is CVE-2026-0749?

Priority 30/100. Public exploit reference

Software pages

Drupal vulnerabilities

References

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