What is CVE-2026-25935?

CVE-2026-25935 is a medium-severity vulnerability in Go-Vikunja Vikunja, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 5.4/10. Published 2026-02-11.

How severe is CVE-2026-25935?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Go-Vikunja Vikunja

CVE-2026-25935

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.

Published 2026-02-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (24.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Go-Vikunja Vikunja — versions < 1.1.0
Vikunja

Weakness classification (CWE)

References

github.com/go-vikunja/vikunja/security/advisories/GHSA-m4g2-2q66-vc9v (Third Party Advisory)
github.com/go-vikunja/vikunja/commit/dd0b82f00a8c9ded1c19a1e643a197c514be6d37 (Patch)
github.com/go-vikunja/vikunja/releases/tag/v1.1.0 (Product, Release Notes)
vikunja.io/changelog/vikunja-v1.1.0-was-released (Third Party Advisory, Release Notes)

Frequently asked questions

What is CVE-2026-25935?: CVE-2026-25935 is a medium-severity vulnerability in Go-Vikunja Vikunja, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 5.4/10. Published 2026-02-11.
How severe is CVE-2026-25935?: Medium severity. CVSS v3 base score is 5.4 out of 10.