What is the CVSS score of CVE-2021-43157?

CVE-2021-43157 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.1%.

Is there a public PoC exploit available for CVE-2021-43157?

Yes, a public proof-of-concept exploit is available for CVE-2021-43157. Prioritise patching immediately. EPSS: 1.1%.

Online Shopping System CVE-2021-43157

CRITICAL

SQL Injection (CWE-89)

2021-12-22 cve@mitre.org

PHP SQLi Online Shopping System Projectworlds

9.8

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-89 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Parameterized queries, prepared statements MITRE ATT&CK 2 techniques across 2 tactics: Initial Access, Persistence The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived	A remote attacker could execute arbitrary SQL commands against the database by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.

No patch listed yet 1.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

Projectsworlds Online Shopping System PHP 1.0 is vulnerable to SQL injection via the id parameter in cart_remove.php. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use parameterized queries/prepared statements. Never concatenate user input into SQL. Apply least-privilege database permissions.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as SQL Injection (CWE-89), which allows attackers to execute arbitrary SQL commands against the database. Projectsworlds Online Shopping System PHP 1.0 is vulnerable to SQL injection via the id parameter in cart_remove.php. Affected products include: Projectworlds Online Shopping System.

Know when Online Shopping System gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

Projectsworlds Online Shopping System PHP 1.0 is vulnerable to SQL injection via the id parameter in cart_remove.php.

Threat Intelligence Overview

EPSS Score

1.1%

Top 37% exploitable

Exploit

POC

Public exploit code exists

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC Yes

EPSS 1.1%

Patch available No

Active threat No

Deciding rule

CRITICAL severity + public POC available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +49

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

SQL Injection HIGH

SQL injection exploits the way applications construct database queries by mixing user input directly into SQL statements.

Affected Products (CPE)NVD

cpe:2.3:a:projectworlds:online_shopping_system:1.0:*:*:*:*:*:*:*

More in Online Shopping System

View all

CVE-2025-61246 CRITICAL Act Now POC

9.8 Jan 08

online-shopping-system-php 1.0 has SQL injection in review_action.php via the proId parameter. PoC available.

CVE-2024-2832 MEDIUM This Month POC

6.1 Mar 23

A vulnerability classified as problematic was found in Campcodes Online Shopping System 1.0. Rated medium severity (CVSS

CVE-2024-1971 CRITICAL Act Now

9.8 Feb 29

A vulnerability has been found in Surya2Developer Online Shopping System 1.0 and classified as critical. Rated critical

CVE-2026-82701 MEDIUM This Month POC

5.5 Aug 31

Unauthenticated SQL injection in code-projects Online Shopping System 1.0 exposes the backend database through the Searc

CVE-2025-9692 MEDIUM This Month POC

5.5 Aug 30

A vulnerability was found in Campcodes Online Shopping System 1.0. Rated medium severity (CVSS 6.9), this vulnerability

CVE-2025-9691 MEDIUM This Month POC

5.5 Aug 30

A vulnerability has been found in Campcodes Online Shopping System 1.0. Rated medium severity (CVSS 6.9), this vulnerabi

CVE-2025-12215 MEDIUM This Month POC

5.5 Oct 27

SQL injection in projectworlds Online Shopping System 1.0 exposes database contents to unauthenticated remote attackers

CVE-2025-11070 MEDIUM This Month POC

5.5 Sep 27

A vulnerability was identified in Projectworlds Online Shopping System 1.0. Rated medium severity (CVSS 6.9), this vulne

CVE-2021-43158 MEDIUM This Month POC

4.3 Dec 22

In ProjectWorlds Online Shopping System PHP 1.0, a CSRF vulnerability in cart_remove.php allows a remote attacker to rem

CVE-2026-19998 LOW Monitor POC

2.1 Aug 17

Reflected cross-site scripting in code-projects Online Shopping System 1.0 allows remote attackers to inject arbitrary J

CVE-2026-19923 LOW Monitor POC

2.1 Aug 16

SQL injection in code-projects Online Shopping System 1.0 allows remote low-privileged attackers to manipulate the `tota

CVE-2026-85643 LOW Monitor POC

2.0 Sep 04

SQL injection in code-projects Online Shopping System 1.0 allows authenticated administrators to manipulate database que

Same weakness CWE-89 – SQL Injection

View all

CVE-2023-48788 CRITICAL POC

9.8

CVE-2019-7481 HIGH POC

7.5

CVE-2025-57819 CRITICAL POC

10.0

CVE-2017-8917 CRITICAL POC

9.8

CVE-2024-27956 CRITICAL POC

9.9

CVE-2014-3704 HIGH POC

7.5

CVE-2016-2555 CRITICAL POC

9.8

CVE-2016-8582 CRITICAL POC

9.8

Same technique SQLi

View all

CVE-2013-0333 HIGH POC

7.5

References

Advisories & patches

REF https://projectworlds.in/free-projects/php-projects/free-download-online-shopping-system/

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

Back