CVSS v3.1
2.7
EPSS
0.24%
Published
Nov 13, 2025
Modified
Nov 25, 2025
Public PoC / Exploit (1)
All weaponized →Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
Description
Astro is a web framework. Starting in version 5.2.0 and prior to version 5.15.6, a Reflected Cross-Site Scripting (XSS) vulnerability exists in Astro's development server error pages when the `trailingSlash` configuration option is used. An attacker can inject arbitrary JavaScript code that executes in the victim's browser context by crafting a malicious URL. While this vulnerability only affects the development server and not production builds, it could be exploited to compromise developer environments through social engineering or malicious links. Version 5.15.6 fixes the issue.
CVSS Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:NWeaknesses (CWE)
Affected Products (1)
References (4)