CVE-2022-22055: The Le-yan dental management system contains an SQL-injection vulnerability

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2022-22055 is a critical-severity flaw (CVSS 9.8) affecting le-yan dental management system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Le-yan dental management system contains an SQL-injection vulnerability. An unauthenticated remote attacker can inject SQL commands into the input field of the login page to acquire administrator’s privilege and perform arbitrary operations on the system 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	2.5% (top 16%)
CISA exploited list	No
Weakness	CWE-89
Published	2022-01-14
Last modified	2026-06-17

Publisher (CNA): TWCERT/CC · Vendor: le-yan dental management system project

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

Am I affected?

Timeline

2022-01-14 05:15 UTCPublished CVE record published
2026-06-17 04:27 UTCUpdated Record last modified

le-yan dental management system project le-yan dental management system DOWNGRADE

Affected: 2.8.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.8.5

1. Check installed version

apt-cache policy le-yan-dental-management-system || rpm -q le-yan-dental-management-system || le-yan-dental-management-system --version

2. No fixed release: DOWNGRADE to a release before 2.8.5 (Debian / Ubuntu)

apt-cache madison le-yan-dental-management-system sudo apt install le-yan-dental-management-system=<VERSION_BEFORE_2.8.5> sudo apt-mark hold le-yan-dental-management-system

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

dnf --showduplicates list le-yan-dental-management-system sudo dnf downgrade le-yan-dental-management-system-<VERSION_BEFORE_2.8.5> sudo dnf versionlock add le-yan-dental-management-system

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-2022-22055?

le-yan dental management system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-22055 being exploited?

CVE-2022-22055 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-2022-22055 affect?

CVE-2022-22055 affects le-yan dental management system. Severity is critical (CVSS 9.8). The Le-yan dental management system contains an SQL-injection vulnerability. An unauthenticated remote attacker can inject SQL commands into the input field of the login page to acquire administrator’s privilege and perform arbitrary operat

How urgent is CVE-2022-22055?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-22056 CRITICAL 9.8 DOWNGRADE The Le-yan dental management system contains a hard-coded credentials vulnerability in the web page source cod

References

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