Answer in brief
CVE-2026-123529 records a Medium severity (CVSS 5.1) vulnerability in Vikunja before 2.7.1 Stored CSS Injection via TipTap Table Cell data-background-color. The current sources do not mark it as known exploited. The current feed maps go-vikunja/vikunja (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps go-vikunja/vikunja (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| go-vikunja/vikunjageneric | >=0 <2.7.1 | 2.7.1 |
Published upstream
Nov 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 8, 2026
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.
Quoted source text, attributed separately from HOL analysis.