What is the CVSS score of CVE-2021-43439?

CVE-2021-43439 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 3.4%.

Iresturant CVE-2021-43439

CRITICAL

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

2021-12-20 cve@mitre.org

XSS Iresturant

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Dec 20, 2021 - 20:15 nvd

CRITICAL 9.8

DescriptionNVD

RCE in Add Review Function in iResturant 1.0 Allows remote attacker to execute commands remotely

AnalysisAI

RCE in Add Review Function in iResturant 1.0 Allows remote attacker to execute commands remotely. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, 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. RCE in Add Review Function in iResturant 1.0 Allows remote attacker to execute commands remotely Affected products include: Iresturant Project Iresturant.

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.