What is the CVSS score of CVE-2021-47769?

CVE-2021-47769 has a CVSS 3.1 base score of 4.8 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of Isshue are affected by CVE-2021-47769?

Organizations using Isshue Shopping Cart 3.5 should be aware of moderate risk from CVE-2021-47769, a cross-site scripting vulnerability rated CVSS 4.8.

Is there a public PoC exploit available for CVE-2021-47769?

Yes, a public proof-of-concept exploit is available for CVE-2021-47769. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2021-47769?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Isshue CVE-2021-47769

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-01-15 disclosure@vulncheck.com

XSS Isshue

4.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.8 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Jan 26, 2026 - 16:15 vuln.today

Public exploit code

CVE Published

Jan 15, 2026 - 16:16 nvd

MEDIUM 4.8

DescriptionCVE.org

Isshue Shopping Cart 3.5 contains a persistent cross-site scripting vulnerability in title input fields across stock, customer, and invoice modules. Attackers with privileged user accounts can inject malicious scripts that execute on preview, potentially enabling session hijacking and persistent phishing attacks.

AnalysisAI

Isshue Shopping Cart 3.5 contains a persistent cross-site scripting vulnerability in title input fields across stock, customer, and invoice modules. [CVSS 4.8 MEDIUM]

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Isshue. Isshue Shopping Cart 3.5 contains a persistent cross-site scripting vulnerability in title input fields across stock, customer, and invoice modules. Attackers with privileged user accounts can inject malicious scripts that execute on preview, potentially enabling session hijacking and persistent phishing attacks.

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.

CVE-2021-47769 vulnerability details – vuln.today

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