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CVE-2026-27575— Vijkunja has Weak Password Policy Combined with Persistent Sessions After Password Change

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 2.0.0之前版本存在代码问题漏洞，该漏洞源于允许设置弱密码且用户更改密码后活动会话仍然有效，可能导致账户劫持和持久访问。

CVSS 9.1 · Critical EPSS 0.43% · P36
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I. Basic Information for CVE-2026-27575

Vulnerability Information
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Vulnerability Title
Vijkunja has Weak Password Policy Combined with Persistent Sessions After Password Change
Source: CVE Program / CVE List V5
Vulnerability Description
Vikunja is an open-source self-hosted task management platform. Prior to version 2.0.0, the application allows users to set weak passwords (e.g., 1234, password) without enforcing minimum strength requirements. Additionally, active sessions remain valid after a user changes their password. An attacker who compromises an account (via brute-force or credential stuffing) can maintain persistent access even after the victim resets their password. Version 2.0.0 contains a fix.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
弱口令要求
Source: CVE Program / CVE List V5
Vulnerability Title
Vikunja 代码问题漏洞
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 2.0.0之前版本存在代码问题漏洞，该漏洞源于允许设置弱密码且用户更改密码后活动会话仍然有效，可能导致账户劫持和持久访问。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
go-vikunja vikunja < 2.0.0 -

II. Public POCs for CVE-2026-27575

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III. Intelligence Information for CVE-2026-27575

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Vendor Advisories for CVE-2026-27575 (1)

Vendor Pages for CVE-2026-27575 (1)

Same Patch Batch · go-vikunja · 2026-02-25 · 4 CVEs total

CVE-2026-27616 7.3 HIGH Vikunja Vulnerable to Stored Cross-Site Scripting (XSS) via Unsanitized SVG Attachment Upl
CVE-2026-27819 7.2 HIGH Vikunja has Path Traversal in CLI Restore
CVE-2026-27116 6.1 MEDIUM Vikunja has Reflected HTML Injection via filter Parameter in Projects Module

IV. Related Vulnerabilities

Same product: vikunja
Same vendor: go-vikunja
Same weakness: CWE-521

V. Comments for CVE-2026-27575

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