Medium severity4.6NVD Advisory· Published Nov 8, 2026· Updated Nov 8, 2026

CVE-2026-123529

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Go Vikunja/Vikunjallm-fuzzy
Range: <2.7.1

Patches

Vulnerability mechanics

References

github.com/go-vikunja/vikunja/security/advisories/GHSA-p23m-cq25-pc4jnvd
www.vulncheck.com/advisories/vikunja-before-2.7.1-stored-css-injection-via-tiptap-table-cell-data-background-colornvd

News mentions

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cvss	0.299
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000