What is the CVSS score of CVE-2021-30171?

CVE-2021-30171 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.6%.

Enterprise Resource Planning Point Of Sale System CVE-2021-30171

MEDIUM

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

2021-05-07 twcert@cert.org.tw

XSS Enterprise Resource Planning Point Of Sale System

5.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

May 07, 2021 - 10:15 nvd

MEDIUM 5.4

DescriptionNVD

Special characters of ERP POS news page are not filtered in users’ input, which allow remote authenticated attackers can inject malicious JavaScript and carry out stored XSS (Stored Cross-site scripting) attacks, additionally access and manipulate customer’s information.

AnalysisAI

Special characters of ERP POS news page are not filtered in users’ input, which allow remote authenticated attackers can inject malicious JavaScript and carry out stored XSS (Stored Cross-site. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Special characters of ERP POS news page are not filtered in users’ input, which allow remote authenticated attackers can inject malicious JavaScript and carry out stored XSS (Stored Cross-site scripting) attacks, additionally access and manipulate customer’s information. Affected products include: Junhetec Enterprise Resource Planning Point Of Sale System.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.