Vikunja
CVE-2026-25935
MEDIUM
GHSA-m4g2-2q66-vc9v
Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Primary rating from GitHub Advisory.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
3DescriptionGitHub Advisory
Vikunja is a todo-app to organize your life. Prior to 1.1.0, TaskGlanceTooltip.vue temporarily creates a div and sets the innerHtml to the description. Since there is no escaping on either the server or client side, a malicious user can share a project, create a malicious task, and cause an XSS on hover. This vulnerability is fixed in 1.1.0.
AnalysisAI
Cross-site scripting (XSS) in Vikunja prior to version 1.1.0 allows authenticated attackers to execute arbitrary JavaScript in other users' browsers by injecting malicious code into task descriptions that are rendered without sanitization in hover tooltips. An attacker can exploit this by sharing a project and creating a specially crafted task that triggers the vulnerability when other users hover over it. A patch is available in version 1.1.0 and later.
Technical ContextAI
Classified as CWE-80 (Basic XSS). Affects Vikunja. Vikunja is a todo-app to organize your life. Prior to 1.1.0, TaskGlanceTooltip.vue temporarily creates a div and sets the innerHtml to the description. Since there is no escaping on either the server or client side, a malicious user can share a project, create a malicious task, and cause an XSS on hover. This vulnerability is fixed in 1.1.0.
RemediationAI
A vendor patch is available — apply it immediately. Fixed in version 1.1.0.. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.
Weak password policy in Vikunja task management before 2.0.0 allows users to set trivially guessable passwords. PoC avai
Stored cross-site scripting (XSS) in Vikunja prior to version 2.0.0 allows authenticated attackers to steal authenticati
Vikunja before version 2.0.0 contains a path traversal vulnerability in its backup restoration function that fails to va
Vikunja is an open-source self-hosted task management platform. [CVSS 6.1 MEDIUM]
Business logic vulnerability in Vikunja task management platform before 2.1.0 allows incomplete resource cleanup, potent
Cross-tenant information disclosure in the self-hosted task manager Vikunja (0.24.0 through 2.3.0) lets a holder of any
Instance-wide data breach in Vikunja before 2.2.1 lets remote attackers exfiltrate and destroy every file attachment acr
Principal type confusion in Vikunja (versions 0.22.0-2.3.0) allows an authenticated low-privilege attacker to fully cont
Principal-type confusion in Vikunja through 2.4.0 allows an attacker holding a valid link-share JWT to impersonate arbit
Authentication bypass in Vikunja task management platform allows unauthenticated attackers to circumvent two-factor auth
Vikunja prior to version 2.3.0 fails to validate link share permissions against server state during JWT authentication,
The Vikunja Desktop Electron application fails to validate or allowlist URI schemes before passing URLs from window.open
Same weakness CWE-80 – Basic XSS
View allVendor StatusVendor
SUSE
Severity: Medium| Product | Status |
|---|---|
| openSUSE Leap 15.6 | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | Fixed |
| openSUSE Leap 15.5 | Fixed |
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External POC / Exploit Code
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