CVE-2021-46198: An SQL Injection vulnerability exists in Sourceodester Courier Management System 1.0 via the email parameter i

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2021-46198 is a critical-severity flaw (CVSS 9.8) affecting courier management system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An SQL Injection vulnerability exists in Sourceodester Courier Management System 1.0 via the email parameter in /cms/ajax.php app.

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	1.8% (top 22%)
CISA exploited list	No
Weakness	CWE-89
Published	2022-01-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: courier 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

2022-01-21 16:15 UTCPublished CVE record published
2026-06-17 04:14 UTCUpdated Record last modified

courier management system project courier management 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 courier-management-system || rpm -q courier-management-system || courier-management-system --version

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

apt-cache madison courier-management-system sudo apt install courier-management-system=<VERSION_BEFORE_1.0> sudo apt-mark hold courier-management-system

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

dnf --showduplicates list courier-management-system sudo dnf downgrade courier-management-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add courier-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-2021-46198?

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

Is CVE-2021-46198 being exploited?

CVE-2021-46198 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-2021-46198 affect?

CVE-2021-46198 affects courier management system. Severity is critical (CVSS 9.8). An SQL Injection vulnerability exists in Sourceodester Courier Management System 1.0 via the email parameter in /cms/ajax.php app.

How urgent is CVE-2021-46198?

Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-9757 HIGH 7.3 DOWNGRADE A vulnerability was determined in Campcodes/SourceCodester Courier Management System 1.0
CVE-2025-9759 HIGH 7.3 DOWNGRADE A security flaw has been discovered in Campcodes/SourceCodester Courier Management System 1.0
CVE-2025-13396 MEDIUM 6.3 DOWNGRADE A weakness has been identified in code-projects Courier Management System 1.0
CVE-2025-11553 MEDIUM 6.3 DOWNGRADE A weakness has been identified in code-projects Courier Management System 1.0
CVE-2025-12316 HIGH 7.3 DOWNGRADE A vulnerability was identified in code-projects Courier Management System 1.0

References

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