What is the CVSS score of CVE-2026-81567?

CVE-2026-81567 has a CVSS 4.0 base score of 8.7 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N. EPSS exploitation probability: 0.2%.

J2Store Extension For Joomla CVE-2026-81567

EUVD-2026-79288 HIGH

SQL Injection (CWE-89)

2026-09-15 Joomla

GHSA-h8qj-2h58-jw98

SQLi J2Store Extension For Joomla J2Commerce Com

8.7

CVSS 4.0 · Vendor: Joomla

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.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.2% exploitation probability (EPSS)

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

Alert me

AnalysisAIv1 – Sep 15, 2026

Unauthenticated blind SQL injection in the J2Store e-commerce extension for Joomla allows remote attackers to extract arbitrary database contents — including customer records, order data, and stored credentials or tokens — from any publicly reachable storefront that exposes the standard product listing or product-tags filter. Affected builds span the 1.x, 3.x, 4.0.x and 4.1.x lines (1.0.0–3.3.2, 4.0.0–4.0.22, 4.1.0–4.1.7), and the CVSS 4.0 vector indicates network-reachable exploitation with no authentication and no user interaction (PR:N/UI:N) for a high confidentiality impact. No public exploit code, EPSS score, or CISA KEV entry was supplied in the intelligence feed, so active exploitation is currently unconfirmed.

Affected VersionsENISA

J2Store extension for Joomla 1.0.0-3.3.22

J2Store extension for Joomla 4.0.0-4.0.22

J2Store extension for Joomla 4.1.0-4.1.7

Affected Packages

euvd j2store_extension_for_joomla no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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

Know when J2Store Extension For Joomla 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

Vendor (Joomla) PRIMARY 8.7 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (Joomla) · only source for this CVE.

CVSS VectorVendor: Joomla

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

Vulnerable system: Confidentiality

High

Vulnerable system: Integrity

None

Vulnerable system: Availability

None

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

DescriptionCVE.org

Joomla Extension - j2commerce.com - Unauthenticated blind SQL injection in the storefront product list in J2Store 1.0.0-3.3.2, 4.0.0-4.0.22, 4.1.0-4.1.7 - Unauthenticated, blind extraction of arbitrary database content (e.g. customer records, order data, stored credentials/tokens) via boolean- or time-based inference, reachable on any public storefront that exposes the standard product listing or product-tags filter.

Threat Intelligence Overview

EPSS Score

0.2%

Top 86% exploitable

Data Quality

4 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

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 HIGH

CISA KEV No

Public POC No

EPSS 0.2%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

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

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +44

PoC: 0

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.

More in J2Store Extension For Joomla

View all

CVE-2026-78069 CRITICAL Act Now

9.5 Sep 03

Missing authorization in J2Store, the J2Commerce e-commerce extension for Joomla, lets remote attackers reach the `J2Sto

CVE-2026-78064 HIGH This Week

8.8 Sep 03

Cart-record tampering in J2Store (Joomla e-commerce extension by j2commerce.com) affects all versions across the 1.0.0-3

CVE-2026-81568 HIGH This Week

8.7 Sep 15

An arbitrary file read flaw in the J2Store e-commerce extension for Joomla (versions 1.0.0–3.3.2, 4.0.0–4.0.22 and 4.1.0

CVE-2026-67359 HIGH This Week

8.7 Aug 21

Order content disclosure in J2Store (Joomla e-commerce extension by j2commerce.com) versions 1.0.0-3.3.20, 4.0.0-4.0.20,

CVE-2026-82189 HIGH This Week

8.7 Sep 15

Unauthenticated order-state tampering in the J2Store e-commerce extension for Joomla (versions 1.0.0–3.3.2, 4.0.0–4.0.22

CVE-2026-77999 HIGH This Week

8.7 Sep 03

Unauthenticated PayPal IPN callback forgery in J2Store (Joomla e-commerce extension) versions 1.0.0-3.3.21, 4.0.0-4.0.21

CVE-2026-74252 HIGH This Week

8.6 Aug 21

Stored Cross-Site Scripting in J2Store and J2Commerce allows unauthenticated attackers to inject persistent malicious sc

CVE-2026-78081 HIGH This Week

7.1 Sep 15

Cross-site request forgery in the J2Store e-commerce extension for Joomla (versions 1.0.0–3.3.2, 4.0.0–4.0.22 and 4.1.0–

CVE-2026-78065 HIGH This Week

7.1 Sep 03

Guest checkout address IDOR in J2Store Joomla extension exposes personally identifiable information of guest purchasers

CVE-2026-67361 MEDIUM This Month

6.9 Aug 21

Unauthenticated file upload in J2Store (Joomla e-commerce extension) versions 1.0.0-3.3.20, 4.0.0-4.0.20, and 4.1.0-4.1.

CVE-2026-67360 MEDIUM This Month

6.3 Aug 21

Cross-customer order replication in J2Store (Joomla extension by j2commerce.com, versions 1.0.0-3.3.20, 4.0.0-4.0.20, an

CVE-2026-82191 MEDIUM This Month

5.3 Sep 15

Parameter smuggling into the PayPal notify redirect of the J2Store extension for Joomla (versions 1.0.0-3.3.2, 4.0.0-4.0

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

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-81567 REF https://www.j2commerce.com/

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

Back