medium · CVSS v3 4.6 · CVSS v4 5.1

CVE-2026-123529

Vikunja before 2.7.1 contains a stored CSS injection vulnerability that allows authenticated users with project write ac…

Description

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.

Scores

Severity
medium
CVSS v2
5.5
CVSS v3
4.6
CVSS v4
5.1
EPSS
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