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CVE-2026-55890
MEDIUM(4.8)CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Risk Signal Score22/100 — NIEDRIG
- CVSS 4.8 — Mittel
- Weniger als 24 Stunden alt
Beschreibung
Grav is a file-based Web platform. Prior to 2.0.0-rc.9, Grav's incomplete fix for stored XSS through the Markdown media attribute action (CVE-2026-42841) leaves the sibling MediaObjectTrait::style method reachable through the same Markdown excerpt-action pipeline, allowing an editor to save Markdown image style parameters that are written into the rendered img style attribute without sanitization. This issue is fixed in version 2.0.0-rc.9.
GitHub Advisories
GHSA-pmf8-g7c8-7v54MEDIUM
Grav: Stored CSS injection via Markdown image ?style=… reaches MediaObjectTrait::style() — incomplete patch of GHSA-r7fx-8g49-7hhr
composer/getgrav/grav→ 2.0.0-rc.9
GitHub Advisory