CVE-2026-27616Vikunja is an open-source self-hosted task management platform.
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.3 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
vikunja vikunja vikunja:vikunja | before 2.0.0 | NVD |
References
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-7jp5-298q-jg98vendor-advisory
- https://github.com/user-attachments/files/25414870/Stored.XSS.Proof.of.concept.pdfexploit, third-party-advisory
- https://vikunja.io/changelog/vikunja-v2.0.0-was-releasedrelease-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.