CVE-2023-28698: Wade Graphic Design FANTSY has a vulnerability of insufficient authorization check

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2023-28698 is a critical-severity flaw (CVSS 9.8) affecting fantsy. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Wade Graphic Design FANTSY has a vulnerability of insufficient authorization check. An unauthenticated remote user can exploit this vulnerability by modifying URL parameters to gain administrator privileges to perform arbitrary system operation or disrupt service.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 42%)
CISA exploited list	No
Weakness	CWE-863
Published	2023-06-02
Last modified	2026-06-17

Publisher (CNA): TWCERT/CC · Vendor: wddgroup

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

Am I affected?

Timeline

2023-06-02 11:15 UTCPublished CVE record published
2026-06-17 05:48 UTCUpdated Record last modified

wddgroup fantsy DOWNGRADE

Affected: 2.1.8

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.8

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.1.8 (Debian / Ubuntu)

apt-cache madison fantsy sudo apt install fantsy=<VERSION_BEFORE_2.1.8> sudo apt-mark hold fantsy

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list fantsy sudo dnf downgrade fantsy-<VERSION_BEFORE_2.1.8> sudo dnf versionlock add fantsy

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-2023-28698?

fantsy: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-28698 being exploited?

CVE-2023-28698 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-2023-28698 affect?

CVE-2023-28698 affects fantsy. Severity is critical (CVSS 9.8). Wade Graphic Design FANTSY has a vulnerability of insufficient authorization check. An unauthenticated remote user can exploit this vulnerability by modifying URL parameters to gain administrator privileges to perform arbitrary system opera

How urgent is CVE-2023-28698?

Priority 54/100. Critical severity; Remotely exploitable, no login, no user action

References

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