Wiz
Vulnerability DatabaseCVE-2021-4033

CVE-2021-4033: 
PHP vulnerability analysis and mitigation

Overview

CVE-2021-4033 is a Cross-Site Request Forgery (CSRF) vulnerability affecting kimai2 software, discovered and disclosed in December 2021. The vulnerability impacts versions of kimai2 up to (excluding) version 1.16.7 (NVD, CVE).

Technical details

The vulnerability has been assigned a CVSS v3.1 base score of 6.5 (Medium), with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N. This indicates that the vulnerability is network exploitable, requires low attack complexity, needs no privileges, requires user interaction, and can result in high impact to integrity while not affecting confidentiality or availability (NVD).

Impact

The CSRF vulnerability in kimai2 could allow attackers to perform unauthorized actions on behalf of authenticated users when they visit maliciously crafted web pages. The impact primarily affects the integrity of the system, with potential for high-severity consequences (NVD).

Mitigation and workarounds

A patch has been released to address this vulnerability. Users should upgrade to kimai2 version 1.16.7 or later. The fix includes improvements to CSRF token handling and form submission validation (Github Patch).

Additional resources

Source: This report was generated using AI

Related PHP vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-65346CRITICAL9.1
  • PHPPHP
  • alexusmai/laravel-file-manager
NoNoDec 04, 2025
CVE-2025-66468HIGH7.6
  • PHPPHP
  • aimeos/ai-cms-grapesjs
NoYesDec 02, 2025
CVE-2025-65345MEDIUM6.5
  • PHPPHP
  • alexusmai/laravel-file-manager
NoNoDec 03, 2025
CVE-2025-65657MEDIUM6.5
  • PHPPHP
  • feehi/cms
NoNoDec 02, 2025
CVE-2025-65186MEDIUM6.1
  • PHPPHP
  • getgrav/grav
NoNoDec 02, 2025

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Additional Wiz resources

Cloud Vulnerability DB

Cloud Vulnerability DB

A community-led vulnerabilities database

Cloud Threat Landscape

Cloud Threat Landscape

A threat intelligence database

PEACH

PEACH

A tenant isolation framework

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management
Get a demo