What is the CVSS score of EUVD-2026-79288?

EUVD-2026-79288 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 EUVD-2026-79288

| CVE-2026-81567 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

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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)

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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.

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Exploit and PoC references, threat intelligence from 22 sources

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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.

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References

Advisories & patches

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

Search Externally

GitHub PoC

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