CVE-2021-25202: SQL injection vulnerability in SourceCodester Sales and Inventory System v 1.0 allows remote attackers to exec

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2021-25202 is a critical-severity flaw (CVSS 9.8) affecting sales and inventory system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in SourceCodester Sales and Inventory System v 1.0 allows remote attackers to execute arbitrary SQL statements, via the id parameter to \ahira\admin\inventory.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	1.5% (top 25%)
CISA exploited list	No
Weakness	CWE-89
Published	2021-07-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sales and inventory system project

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

Am I affected?

Timeline

2021-07-22 18:15 UTCPublished CVE record published
2026-06-17 03:41 UTCUpdated Record last modified

sales and inventory system project sales and inventory 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 sales-and-inventory-system || rpm -q sales-and-inventory-system || sales-and-inventory-system --version

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

apt-cache madison sales-and-inventory-system sudo apt install sales-and-inventory-system=<VERSION_BEFORE_1.0> sudo apt-mark hold sales-and-inventory-system

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

dnf --showduplicates list sales-and-inventory-system sudo dnf downgrade sales-and-inventory-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add sales-and-inventory-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-2021-25202?

sales and inventory system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-25202 being exploited?

CVE-2021-25202 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-2021-25202 affect?

CVE-2021-25202 affects sales and inventory system. Severity is critical (CVSS 9.8). SQL injection vulnerability in SourceCodester Sales and Inventory System v 1.0 allows remote attackers to execute arbitrary SQL statements, via the id parameter to \ahira\admin\inventory.php.

How urgent is CVE-2021-25202?

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

Software pages

PHP vulnerabilities

Related CVEs

CVE-2026-4826 MEDIUM 6.3 DOWNGRADE A vulnerability was determined in SourceCodester Sales and Inventory System 1.0
CVE-2026-4825 MEDIUM 6.3 DOWNGRADE A vulnerability was found in SourceCodester Sales and Inventory System 1.0
CVE-2026-4781 MEDIUM 6.3 DOWNGRADE A flaw has been found in SourceCodester Sales and Inventory System 1.0
CVE-2026-4780 MEDIUM 6.3 DOWNGRADE A vulnerability was detected in SourceCodester Sales and Inventory System 1.0
CVE-2026-4779 MEDIUM 6.3 DOWNGRADE A security vulnerability has been detected in SourceCodester Sales and Inventory System 1.0

References

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