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CVE-2026-33316— Vikunja’s Improper Access Control Enables Bypass of Administrator-Imposed Account Disablement

Quick assessment

Affected
go-vikunja vikunja
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vikunja是Vikunja开源的一个待办事项应用程序。 Vikunja 2.2.0之前版本存在安全漏洞，该漏洞源于密码重置逻辑缺陷，可能导致已禁用用户重新激活账户并绕过管理员禁用措施。

CVSS 8.1 · High EPSS 0.44% · P36

Possible ATT&CK Techniques 1 AI

T1136 · Create Account
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I. Basic Information for CVE-2026-33316

Vulnerability Information
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Vulnerability Title
Vikunja’s Improper Access Control Enables Bypass of Administrator-Imposed Account Disablement
Source: CVE Program / CVE List V5
Vulnerability Description
Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.0, a flaw in Vikunja’s password reset logic allows disabled users to regain access to their accounts. The `ResetPassword()` function sets the user’s status to `StatusActive` after a successful password reset without verifying whether the account was previously disabled. By requesting a reset token through `/api/v1/user/password/token` and completing the reset via `/api/v1/user/password/reset`, a disabled user can reactivate their account and bypass administrator-imposed account disablement. Version 2.2.0 patches the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Vikunja 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vikunja是Vikunja开源的一个待办事项应用程序。 Vikunja 2.2.0之前版本存在安全漏洞，该漏洞源于密码重置逻辑缺陷，可能导致已禁用用户重新激活账户并绕过管理员禁用措施。
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
go-vikunja vikunja < 2.2.0 -

II. Public POCs for CVE-2026-33316

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III. Intelligence Information for CVE-2026-33316

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Patches & Fixes for CVE-2026-33316 (2)

Vendor Advisories for CVE-2026-33316 (1)

Vendor Pages for CVE-2026-33316 (1)

Same Patch Batch · go-vikunja · 2026-03-24 · 16 CVEs total

CVE-2026-33678 8.1 HIGH Vikunja has IDOR in Task Attachment ReadOne Allows Cross-Project File Access and Deletion
CVE-2026-33680 7.5 HIGH Vikunja Vulnerable to Link Share Hash Disclosure via ReadAll Endpoint Enables Permission E
CVE-2026-33474 6.5 MEDIUM Vikunja Affected by DoS via Image Preview Generation
CVE-2026-33677 6.5 MEDIUM Webhook BasicAuth Credentials Exposed to Read-Only Project Collaborators via API
CVE-2026-33676 6.5 MEDIUM Vikunja has Cross-Project Information Disclosure via Task Relations — Missing Authorizatio
CVE-2026-33675 6.4 MEDIUM Vikunja has SSRF via Todoist/Trello Migration File Attachment URLs that Allows Reading Int
CVE-2026-33679 6.4 MEDIUM Vikunja has SSRF via OpenID Connect Avatar Download that Bypasses Webhook SSRF Protections
CVE-2026-33473 5.7 MEDIUM Vikunja has TOTP Reuse During Validity Window
CVE-2026-33315 Vikunja has a 2FA Bypass via Caldav Basic Auth
CVE-2026-33313 Vikunja has an IDOR in Task Comments Allows Reading Arbitrary Comments
CVE-2026-33335 Vikunja Desktop allows arbitrary local application invocation via unvalidated shell.openEx
CVE-2026-33334 Vikunja Desktop: Any frontend XSS escalates to Remote Code Execution due to nodeIntegratio
CVE-2026-33336 Vikunja Desktop vulnerable to Remote Code Execution via same-window navigation
CVE-2026-33668 Vikunja Allows Disabled/Locked User Accounts to Authenticate via API Tokens, CalDAV, and O
CVE-2026-33700 Vikunja has a Link Share Delete IDOR — Missing Project Ownership Check Allows Cross-Projec

IV. Related Vulnerabilities

Same product: vikunja
Same vendor: go-vikunja
Same weakness: CWE-284

V. Comments for CVE-2026-33316

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