CVE-2026-54721

8.8 Élevée

Publiée le 27/08/2026 à 22:17 · Modifiée le 09/09/2026 à 23:09 · Analyse NVD reportée · Source : security-advisories@github.com

Description

Silverstripe UserForms provides a visual form builder for the Silverstripe CMS. From 6.0.0 until 6.4.9, 7.0.7, and 7.1.1, the userform email recipient subject field in the CMS accepts a specially crafted payload that can be interpreted as executable server-side code. An authenticated CMS user with permission to configure a UserForms email recipient can use the subject field to run arbitrary code on the server, compromising confidentiality, integrity, and availability. This issue is fixed in versions 6.4.9, 7.0.7, and 7.1.1.

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Produits concernés

silverstripe-userforms

Scores CVSS

Version	Score	Source	Vecteur
3.1	8.8 Élevée	security-advisories@github.com	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`

Faiblesses (CWE)

CWE-94

Références

https://github.com/silverstripe/silverstripe-userforms/commit/23c069866900c19b499bfa997d1e251e97491702
https://github.com/silverstripe/silverstripe-userforms/commit/c55494ad7c717b199a3c1663b43a54db5d95604c
https://github.com/silverstripe/silverstripe-userforms/pull/1441
https://github.com/silverstripe/silverstripe-userforms/pull/1442
https://github.com/silverstripe/silverstripe-userforms/releases/tag/6.4.9
https://github.com/silverstripe/silverstripe-userforms/releases/tag/7.0.7
https://github.com/silverstripe/silverstripe-userforms/releases/tag/7.1.1
https://github.com/silverstripe/silverstripe-userforms/security/advisories/GHSA-g8wr-r2v2-vqc6

Ailleurs

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