CVE-2023-28994: Unauth

Q: How do I fix CVE-2023-28994?

flatsome: upgrade to newer than 3.16.8. Exact commands for each OS are on this page.

Q: Is CVE-2023-28994 being exploited?

CVE-2023-28994 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-2023-28994 affect?

CVE-2023-28994 affects flatsome. Severity is high (CVSS 7.1). Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in UX-themes Flatsome plugin <= 3.16.8 versions.

Routine

HIGH 7.1UPGRADE

CVE-2023-28994 is a high-severity flaw (CVSS 7.1) affecting flatsome. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in UX-themes Flatsome plugin <= 3.16.8 versions.

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	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-08-23
Last modified	2026-06-17

Publisher (CNA): Patchstack · Vendor: uxthemes

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

Am I affected?

Timeline

2023-08-23 15:15 UTCPublished CVE record published
2026-06-17 05:49 UTCUpdated Record last modified

uxthemes flatsome UPGRADE

Affected: <= 3.16.8

Fixed in: newer than 3.16.8

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy flatsome || rpm -q flatsome || flatsome --version

2. UPGRADE to newer than 3.16.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade flatsome

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade flatsome

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-2023-28994?

flatsome: upgrade to newer than 3.16.8. Exact commands for each OS are on this page.

Is CVE-2023-28994 being exploited?

CVE-2023-28994 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-2023-28994 affect?

CVE-2023-28994 affects flatsome. Severity is high (CVSS 7.1). Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in UX-themes Flatsome plugin <= 3.16.8 versions.

How urgent is CVE-2023-28994?

Priority 34/100. High severity

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References

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