{"cve":"CVE-2026-27616","nvd":{"published":"2026-02-25T22:16:26.627","modified":"2026-06-17T10:27:24.153","status":"Analyzed","description":"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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","score":7.3},"cwes":["CWE-79"],"references":["https://github.com/go-vikunja/vikunja/security/advisories/GHSA-7jp5-298q-jg98","https://github.com/user-attachments/files/25414870/Stored.XSS.Proof.of.concept.pdf","https://vikunja.io/changelog/vikunja-v2.0.0-was-released"],"products":["vikunja:vikunja"],"source":"nvd","synced_at":"2026-10-19T22:24:17.937441719+00:00"},"epss":{"cve":"CVE-2026-27616","score":0.00512,"percentile":0.43712,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-7jp5-298q-jg98","url":"https://osv.dev/vulnerability/GHSA-7jp5-298q-jg98","summary":"Vikunja: Stored XSS via Unsanitized SVG Attachment Upload Leads to Token Exposure","modified":"2026-03-09T01:12:53.754489991Z","packages":[{"ecosystem":"Go","name":"code.vikunja.io/api","purl":"pkg:golang/code.vikunja.io/api","ranges":["<=0.24.6"],"fixed":[]}]},{"id":"GO-2026-4553","url":"https://osv.dev/vulnerability/GO-2026-4553","summary":"Vikunja: Stored XSS via Unsanitized SVG Attachment Upload Leads to Token Exposure in code.vikunja.io/api","modified":"2026-03-09T01:12:53.754489Z","packages":[{"ecosystem":"Go","name":"code.vikunja.io/api","purl":"pkg:golang/code.vikunja.io/api","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}