go-vikunja up to 1.x SVG File Parser cross site scripting

Summaryinfo

A vulnerability described as problematic has been identified in go-vikunja vikunja up to 1.x. Affected by this issue is some unknown functionality of the component SVG File Parser. The manipulation results in cross site scripting. This vulnerability was named CVE-2026-27616. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in go-vikunja vikunja up to 1.x. Affected is an unknown code block of the component SVG File Parser. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

Vikunja is an open-source self-hosted task management platform. Prior to version 2.0.0, the application allows users to upload SVG files as task attachments. SVG is an XML-based format that supports JavaScript execution through elements such as <script> tags or event handlers like onload. The application does not sanitize SVG content before storing it. When the uploaded SVG file is accessed via its direct URL, it is rendered inline in the browser under the application's origin. As a result, embedded JavaScript executes in the context of the authenticated user. Because the authentication token is stored in localStorage, it is accessible via JavaScript and can be retrieved by a malicious payload. Version 2.0.0 patches this issue.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-27616 since 02/20/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 2.0.0 eliminates this vulnerability. The upgrade is hosted for download at vikunja.io.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• go-vikunja

Name

• vikunja

Version

• 1.x

Website

• Product: https://github.com/go-vikunja/vikunja/

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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