CVE-2022-28530: Sourcecodester Covid-19 Directory on Vaccination System 1.0 is vulnerable to SQL Injection via cmdcategory.

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2022-28530 is a critical-severity flaw (CVSS 9.8) affecting covid-19 directory on vaccination system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Sourcecodester Covid-19 Directory on Vaccination System 1.0 is vulnerable to SQL Injection via cmdcategory.

Why this priority

Critical severity
Public exploit reference
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	1.6% (top 25%)
CISA exploited list	No
Weakness	CWE-89
Published	2022-05-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: covid-19 directory on vaccination system project

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

Am I affected?

Timeline

2022-05-05 17:15 UTCPublished CVE record published
2026-06-17 04:38 UTCUpdated Record last modified

covid-19 directory on vaccination system project covid-19 directory on vaccination system DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy covid-19-directory-on-vaccination-system || rpm -q covid-19-directory-on-vaccination-system || covid-19-directory-on-vaccination-system --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison covid-19-directory-on-vaccination-system sudo apt install covid-19-directory-on-vaccination-system=<VERSION_BEFORE_1.0> sudo apt-mark hold covid-19-directory-on-vaccination-system

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

dnf --showduplicates list covid-19-directory-on-vaccination-system sudo dnf downgrade covid-19-directory-on-vaccination-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add covid-19-directory-on-vaccination-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-2022-28530?

covid-19 directory on vaccination system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-28530 being exploited?

CVE-2022-28530 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-2022-28530 affect?

CVE-2022-28530 affects covid-19 directory on vaccination system. Severity is critical (CVSS 9.8). Sourcecodester Covid-19 Directory on Vaccination System 1.0 is vulnerable to SQL Injection via cmdcategory.

How urgent is CVE-2022-28530?

Priority 63/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-46096 MEDIUM 6.1 DOWNGRADE A Cross site scripting (XSS) vulnerability in Sourcecodester Online Covid-19 Directory on Vaccination System v
CVE-2022-46095 MEDIUM 6.1 DOWNGRADE Sourcecodester Covid-19 Directory on Vaccination System 1.0 was discovered to contain a Cross-Site Scripting (
CVE-2022-28531 CRITICAL 9.8 DOWNGRADE Sourcecodester Covid-19 Directory on Vaccination System1.0 is vulnerable to SQL Injection via the admin/login.

References

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