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Quick.Cart EUVDEUVD-2026-49766

| CVE-2026-41874 MEDIUM
Plaintext Storage of a Password (CWE-256)
2026-07-28 CERT-PL GHSA-5v73-8v9g-j67x
6.8
CVSS 4.0 · Vendor: CERT-PL
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Gain local access to server
  2. Delivery
    Locate configuration file
  3. Exploit
    Read plaintext admin credentials
  4. Execution
    Authenticate as admin
  5. Impact
    Escalate privileges via admin panel

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V6 - Authentication Credential storage protection
Exploitation Conditions

Requires file-system access to the server running Quick.Cart, specifically read permission on the configuration file that stores admin credentials. The attacker must have a local user account or have exploited another vulnerability to gain local access. No special Quick.Cart configuration settings are needed beyond default installation; the vulnerability exists in the standard setup. Limiting factor: remote unauthenticated exploitation is not possible-the attack vector is strictly local.

Impact

The CVSS 4.0 vector (AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N) yields a base score of 6.8, reflecting a local, low-complexity attack with low privileges required, resulting in high confidentiality impact but no other impacts. The vendor has assessed exploitation likelihood as very low and declined to fix, which aligns with the need for prior local access. No EPSS score, KEV listing, or proof-of-concept code is available, indicating this is a low-priority risk in practice-exploitation is unlikely unless an attacker already has a foothold on the server.

Exploit ScenarioDerived

An attacker who gains local shell access to the server (e.g., via an unrelated web shell or compromised SSH account) reads the Quick.Cart configuration file, extracts the plaintext admin username and password, then logs into the admin panel to alter product listings, exfiltrate customer data, or pivot to further server compromise.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 28, 2026

Privilege escalation in Quick.Cart via hard-coded, plaintext admin credentials stored in a configuration file allows local attackers with file system access to retrieve authentication details and gain administrative control. The vendor considers exploitation unlikely and has not released a fix; all versions are believed vulnerable, with version 6.7 confirmed. No public exploit or active exploitation has been reported.

RemediationAI

No vendor-released patch exists; the vendor deemed a fix unnecessary. Compensating controls include: restricting file-system permissions on the configuration file (e.g., chmod 600 and owned by the web server user) to prevent unauthorized reads; implementing file integrity monitoring (e.g., auditd) to detect access; rotating admin credentials regularly and storing them in environment variables or a secrets manager (e.g., HashiCorp Vault) instead of plaintext files. These measures add administrative overhead but mitigate the exposure.

Affected VersionsENISA

Quick.Cart 0 ≤6.7

Affected Packages

euvd quick_cart 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.

Technical ContextAI · show details

The vulnerability is rooted in CWE-256 (Plaintext Storage of a Password), where the application stores administrator credentials in a configuration file without encryption. The CPE cpe:2.3:a:opensolution:quick.cart:*:*:*:*:*:*:* indicates all versions of the Quick.Cart shopping cart are affected. This design flaw exposes credentials to any local user who can read the file system, violating the principle of secure credential storage.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (CERT-PL) PRIMARY 6.8 MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
vuln.today AI 5.5 MEDIUM

Local access required, low complexity, attacker needs system-level privilege (PR:L), no user interaction.

3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (CERT-PL).

CVSS VectorVendor: CERT-PL

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
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

Quick.Cart stores hard-coded, plaintext admin credentials in a configuration file. This flaw allows attackers with access to the server file system to retrieve authentication details, potentially leading to privilege escalation.

The vendor assessed the likelihood of exploitation as very low and determined that a fix is not necessary.

Only version 6.7 was tested but all versions should be considered as vulnerable.

Threat Intelligence Overview

EPSS Score
0.1%
Top 97% exploitable
Prevalence
Medium
Niche open-source shopping cart used by small e-commerce sites
Data Quality
6 sources
Confidence: High

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 MEDIUM
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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
Defer
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

34
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +34
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

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