CVE-2023-39311: Cross-Site Request Forgery (CSRF) vulnerability in ThemeFusion Fusion Builder.This issue affects Fusion Builde

Q: How do I fix CVE-2023-39311?

fusion builder: upgrade to newer than 3.11.1. Exact commands for each OS are on this page.

Q: Is CVE-2023-39311 being exploited?

CVE-2023-39311 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-39311 affect?

CVE-2023-39311 affects fusion builder. Severity is high (CVSS 7.1). Cross-Site Request Forgery (CSRF) vulnerability in ThemeFusion Fusion Builder.This issue affects Fusion Builder: from n/a through 3.11.1.

Routine

HIGH 7.1UPGRADE

CVE-2023-39311 is a high-severity flaw (CVSS 7.1) affecting fusion builder. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-Site Request Forgery (CSRF) vulnerability in ThemeFusion Fusion Builder.This issue affects Fusion Builder: from n/a through 3.11.1.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-352
Published	2024-03-27
Last modified	2026-06-17

Publisher (CNA): Patchstack · Vendor: avada

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

Am I affected?

Timeline

2024-03-27 14:15 UTCPublished CVE record published
2026-06-17 06:12 UTCUpdated Record last modified

avada fusion builder UPGRADE

Affected: <= 3.11.1

Fixed in: newer than 3.11.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 3.11.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade fusion-builder

Note

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

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-2023-39311?

fusion builder: upgrade to newer than 3.11.1. Exact commands for each OS are on this page.

Is CVE-2023-39311 being exploited?

CVE-2023-39311 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-2023-39311 affect?

CVE-2023-39311 affects fusion builder. Severity is high (CVSS 7.1). Cross-Site Request Forgery (CSRF) vulnerability in ThemeFusion Fusion Builder.This issue affects Fusion Builder: from n/a through 3.11.1.

How urgent is CVE-2023-39311?

Priority 29/100. High severity

Related CVEs

CVE-2023-39309 HIGH 8.5 UPGRADE Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in ThemeFus

References

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