CVE-2021-40907: SQL injection vulnerability in Sourcecodester Storage Unit Rental Management System v1 by oretnom23, allows at

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2021-40907 is a critical-severity flaw (CVSS 9.8) affecting storage unit rental management system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in Sourcecodester Storage Unit Rental Management System v1 by oretnom23, allows attackers to execute arbitrary SQL commands via the username parameter to /storage/classes/Login.php.

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	1.3% (top 31%)
CISA exploited list	No
Weakness	CWE-89
Published	2022-01-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: storage unit rental 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

2022-01-24 15:15 UTCPublished CVE record published
2026-06-17 04:07 UTCUpdated Record last modified

storage unit rental management system project storage unit rental 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 storage-unit-rental-management-system || rpm -q storage-unit-rental-management-system || storage-unit-rental-management-system --version

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

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

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

dnf --showduplicates list storage-unit-rental-management-system sudo dnf downgrade storage-unit-rental-management-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add storage-unit-rental-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-2021-40907?

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

Is CVE-2021-40907 being exploited?

CVE-2021-40907 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-2021-40907 affect?

CVE-2021-40907 affects storage unit rental management system. Severity is critical (CVSS 9.8). SQL injection vulnerability in Sourcecodester Storage Unit Rental Management System v1 by oretnom23, allows attackers to execute arbitrary SQL commands via the username parameter to /storage/classes/Login.php.

How urgent is CVE-2021-40907?

Priority 62/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2023-30247 CRITICAL 9.8 DOWNGRADE File Upload vulnerability found in Oretnom23 Storage Unit Rental Management System v.1.0 allows a remote attac
CVE-2023-1559 MEDIUM 4.7 DOWNGRADE A vulnerability classified as problematic was found in SourceCodester Storage Unit Rental Management System 1.
CVE-2021-42597 MEDIUM 5.4 DOWNGRADE A Cross Site Scripting (XSS) vulnerability exists in Sourcecodester Storage Unit Rental Management System PHP

References

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