What is the CVSS score of CVE-2021-3985?

CVE-2021-3985 has a CVSS 3.1 base score of 9.0 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H. EPSS exploitation probability: 1.2%.

Is there a public PoC exploit available for CVE-2021-3985?

Yes, a public proof-of-concept exploit is available for CVE-2021-3985. Prioritise patching immediately. EPSS: 1.2%.

Is there a patch available for CVE-2021-3985?

Yes, a patch is available for CVE-2021-3985. Update the affected software to the latest version immediately.

Kimai2 CVE-2021-3985

CRITICAL

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

2021-12-01 security@huntr.dev

XSS Kimai2

9.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.0 CRITICAL

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Dec 01, 2021 - 11:15 nvd

CRITICAL 9.0

DescriptionNVD

kimai2 is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

AnalysisAI

kimai2 is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). Rated critical severity (CVSS 9.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code 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. kimai2 is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affected products include: Kimai Kimai2.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.