Fiche vulnérabilité
CVE-2025-55303 : faille moyenne astro astro (CVSS 6.1)
Description
Astro is a web framework for content-driven websites. In versions of astro before 5.13.2 and 4.16.18, the image optimization endpoint in projects deployed with on-demand rendering allows images from unauthorized third-party domains to be served. On-demand rendered sites built with Astro include an /_image endpoint which returns optimized versions of images. A bug in impacted versions of astro allows an attacker to bypass the third-party domain restrictions by using a protocol-relative URL as the image source, e.g. /_image?href=//example.com/image.png. This vulnerability is fixed in 5.13.2 and 4.16.18.
En bref
- Sévérité
- Moyenne (CVSS 6.1)
- Vecteur CVSS
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Exploitation active
- Non signalée par la CISA
- Publication
- 19 août 2025
- Dernière mise à jour
- 17 juin 2026
Produits concernés
- astro astro