CVE-2026-123529
Vikunja before 2.7.1 Stored CSS Injection via TipTap Table Cell data-background-color
CVSS Score
4.6
EPSS Score
0.0%
EPSS Percentile
0th
Vikunja before 2.7.1 contains a stored CSS injection vulnerability that allows authenticated users with project write access to inject arbitrary CSS via unsanitized table-cell data-background-color attributes. Attackers can store crafted task descriptions or comments to render full-viewport phishing overlays or force zero-click outbound background-image requests that deanonymize viewers.
| CWE | CWE-1021 |
| Vendor | go-vikunja |
| Product | vikunja |
| Published | Nov 8, 2026 |
Stay Ahead of the Next One
Get instant alerts for go-vikunja vikunja
Be the first to know when new medium vulnerabilities affecting go-vikunja vikunja are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
go-vikunja / vikunja
0 < 2.7.1
References
Credits
🔍 r1alfarraj