CVE-2026-25935 Vikunja Affected by XSS Via Task Preview
A malicious user can trigger cross-site scripting in Vikunja by sharing a project with a crafted task description, potentially leading to code execution or account takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-25935?
CVE-2026-25935 is a high-severity cross-site scripting vulnerability in go-vikunja vikunja, published on 11 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Which versions are affected by CVE-2026-25935?
3 open source packages ship an affected version, including code.vikunja.io/api. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
code.vikunja.io/api Go | All versions | None |
code.vikunja.io/api Go | All versions to 0.24.6 | None |
code.vikunja.io/api Go | All versions to 0.24.6 | None |
Products include Vikunja Vikunja.
How do I fix CVE-2026-25935?
Upgrade to a fixed version.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-25935 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-25935 exists.
Other vulnerabilities in go-vikunja vikunja
- CVE-2026-28268 Vikunja Vulnerable to Account Takeover via Password Reset Token Reuse
- CVE-2026-27575 Vijkunja has Weak Password Policy Combined with Persistent Sessions After Password Change
- CVE-2026-35595 Vikunja Affected by Privilege Escalation via Project Reparenting
- CVE-2026-33316 Vikunja’s Improper Access Control Enables Bypass of Administrator-Imposed Account Disablement
- CVE-2026-33678 Vikunja has IDOR in Task Attachment ReadOne Allows Cross-Project File Access and Deletion
Sources
Also known as GHSA-m4g2-2q66-vc9v, GO-2026-4480.