CVE-2026-55890: Getgrav Grav

Medium severity, CVSS 4.8. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Getgrav Grav: before 2.0.0-rc.9 (fixed in 2.0.0-rc.9)

Published 2026-07-10. Last modified 2026-07-10.