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PHP EUVDEUVD-2026-79291

| CVE-2026-81568 HIGH
Path Traversal (CWE-22)
2026-09-15 Joomla GHSA-pvq3-xj8x-x2hv
8.7
CVSS 4.0 · Vendor: Joomla
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK

2 techniques across 2 tactics: Discovery, Collection

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 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 15, 2026

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 4.1.0–4.1.7) lets anyone holding a valid download token/pid pair for a product download retrieve files outside the configured attachment folder. The J2StoreModelOrderdownloads::getFilePath() routine builds the on-disk path by concatenating the attachments directory with the stored product_file_save_name and only runs JPath::clean() plus JFile::exists(), so a ../ segment in that stored value resolves outside the folder and exposes files such as configuration.php to the web server's read permissions. No public exploit code and no CISA KEV listing were identified at time of analysis, but a CVSS 4.0 base score of 8.7 (VC:H, AV:N, PR:N) makes this a serious confidentiality risk for exposed J2Store storefronts.

Affected VersionsENISA

J2Store extension for Joomla 1.0.0-3.3.22
J2Store extension for Joomla 4.1.0-4.1.7
J2Store extension for Joomla 4.0.0-4.0.22

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 - Arbitrary file read via task=download in J2Store 1.0.0-3.3.2, 4.0.0-4.0.22, 4.1.0-4.1.7 - J2StoreModelOrderdownloads::getFilePath() built the on-disk path to a purchased digital download by concatenating the configured attachment folder with the product file's stored product_file_save_name, using only JPath::clean() (which normalises separators but does not resolve or reject .. segments) and a plain JFile::exists() check - never confirming the resolved path stayed inside the configured attachment folder. If a product file's product_file_save_name ever contained a ../ traversal segment - most plausibly via the CSRF-forgeable admin product-file save actions described in Issue 1, but equally by any future integration or bug that writes that field - any customer holding a valid download token/pid pair for that product file could have the traversal resolve to a path outside the attachment folder and download any file readable by the web server (e.g. configuration.php).

Threat Intelligence Overview

EPSS Score
0.3%
Top 74% exploitable
Data Quality
4 sources
Confidence: Medium

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 0.3%
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

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Request Forgery exploits the automatic credential inclusion behavior of web browsers.

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

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