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CVE-2026-66416— Leantime CSRF Protection Globally Disabled by Omission of Laravel VerifyCsrfToken Middleware

Quick assessment

Affected
Leantime Leantime
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Leantime是Leantime公司开源的一个面向非项目经理的以目标为中心的项目管理系统。 Leantime 3.6.2之前版本存在跨站请求伪造漏洞，该漏洞源于排除Laravel VerifyCsrfToken中间件，容易受到跨站请求伪造攻击，可能导致攻击者代表已认证用户创建或删除项目、修改设置、更改权限。

CVSS 8.8 · High EPSS 0.26% · P16

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Leantime Leantime ≤ 3.6.2 affected
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I. Basic Information for CVE-2026-66416

Vulnerability Information
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Vulnerability Title
Leantime CSRF Protection Globally Disabled by Omission of Laravel VerifyCsrfToken Middleware
Source: CVE Program / CVE List V5
Vulnerability Description
Leantime 3.6.2 contains a cross-site request forgery vulnerability that allows unauthenticated attackers to perform state-changing actions on behalf of authenticated users by excluding the Laravel VerifyCsrfToken middleware from the global middleware stack in app/Http/Kernel.php. Attackers can craft malicious pages delivered via phishing emails or malicious websites to trigger unauthorized POST, PUT, and DELETE requests that create or delete projects, modify settings, and change permissions as any authenticated user.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Leantime 跨站请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Leantime是Leantime公司开源的一个面向非项目经理的以目标为中心的项目管理系统。 Leantime 3.6.2之前版本存在跨站请求伪造漏洞，该漏洞源于排除Laravel VerifyCsrfToken中间件，容易受到跨站请求伪造攻击，可能导致攻击者代表已认证用户创建或删除项目、修改设置、更改权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Leantime Leantime 0 ~ 3.6.2 -

II. Public POCs for CVE-2026-66416

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6614 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
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POC zip download
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III. Intelligence Information for CVE-2026-66416

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Patches & Fixes for CVE-2026-66416 (1)

Vendor Advisories for CVE-2026-66416 (1)

Proof of Concept for CVE-2026-66416 (1)

Other References for CVE-2026-66416 (1)

Same Patch Batch · Leantime · 2026-07-30 · 3 CVEs total

CVE-2026-66415 8.5 HIGH Leantime Server-Side Request Forgery and Local File Inclusion in Blueprints::import()
CVE-2026-66414 6.1 MEDIUM Leantime Open Redirect in Login Controller via redirectUrl Parameter

IV. Related Vulnerabilities

Same product: Leantime
Same vendor: Leantime
Same weakness: CWE-352

V. Comments for CVE-2026-66416

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