CVE-2026-55890

4.8 Moyenne

Publiée le 10/07/2026 à 19:17 · Modifiée le 10/07/2026 à 21:17 · Analyse NVD reportée · Source : security-advisories@github.com

Description

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.

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Produits concernés

getgrav grav

Scores CVSS

Version	Score	Source	Vecteur
3.1	4.8 Moyenne	security-advisories@github.com	`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N`

Faiblesses (CWE)

CWE-79

Références

https://github.com/getgrav/grav/commit/24fd6cbc438e12310b126d1176e7d7601203a6f2
https://github.com/getgrav/grav/releases/tag/2.0.0-rc.9
https://github.com/getgrav/grav/security/advisories/GHSA-pmf8-g7c8-7v54
https://github.com/getgrav/grav/security/advisories/GHSA-pmf8-g7c8-7v54

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories