CVE-2022-4855: A vulnerability, which was classified as critical, was found in SourceCodester Lead Management System 1.0

This week

HIGH 7.3REMOTEDOWNGRADE

CVE-2022-4855 is a high-severity flaw (CVSS 7.3) affecting lead management system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability, which was classified as critical, was found in SourceCodester Lead Management System 1.0. Affected is an unknown function of the file login.php. The manipulation of the argument username leads to sql injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-217020.

Why this priority

High severity
EPSS top 2%: very likely to be exploited
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	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	24.6% (top 2%)
CISA exploited list	No
Weakness	CWE-89
Published	2022-12-30
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: lead 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

2022-12-30 09:15 UTCPublished CVE record published
2026-06-17 05:22 UTCUpdated Record last modified

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

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

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

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

dnf --showduplicates list lead-management-system sudo dnf downgrade lead-management-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add lead-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-2022-4855?

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

Is CVE-2022-4855 being exploited?

CVE-2022-4855 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-2022-4855 affect?

CVE-2022-4855 affects lead management system. Severity is high (CVSS 7.3). A vulnerability, which was classified as critical, was found in SourceCodester Lead Management System 1.0. Affected is an unknown function of the file login.php. The manipulation of the argument username leads to sql injection. It is possib

How urgent is CVE-2022-4855?

Priority 60/100. High severity; EPSS top 2%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2022-47866 CRITICAL 9.8 DOWNGRADE Lead management system v1.0 is vulnerable to SQL Injection via the id parameter in removeBrand.php.
CVE-2022-47865 CRITICAL 9.8 DOWNGRADE Lead Management System v1.0 is vulnerable to SQL Injection via the id parameter in removeOrder.php.
CVE-2022-47864 CRITICAL 9.8 DOWNGRADE Lead Management System v1.0 is vulnerable to SQL Injection via the id parameter in removeCategories.php.
CVE-2022-47862 CRITICAL 9.8 DOWNGRADE Lead Management System v1.0 is vulnerable to SQL Injection via the customer_id parameter in ajax_represent.php
CVE-2022-47861 CRITICAL 9.8 DOWNGRADE Lead Management System v1.0 is vulnerable to SQL Injection via the id parameter in removeLead.php.

References

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