Keycloak: keycloak error_description injection on error pages

A flaw was found in Keycloak. Keycloak’s account console and other pages accept arbitrary text in the error_description query parameter. This text is directly rendered in error pages without validation or sanitization. While HTML encoding prevents XSS, an attacker can craft URLs with misleading messages (e.g., fake support phone numbers or URLs), which are displayed within the trusted Keycloak UI. This creates a phishing vector, potentially tricking users into contacting malicious actors.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

在Web页面生成时对输入的转义处理不恰当(跨站脚本)

Red Hat Build of Keycloak 跨站脚本漏洞

Red Hat build of Keycloak是美国红帽（Red Hat）公司的一款用于单点登录的Web应用。 Red Hat Build of Keycloak存在跨站脚本漏洞，该漏洞源于对error_description参数的错误处理，可能导致钓鱼攻击。

N/A

N/A