EUVD-2026-16320
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L
Lifecycle Timeline
3Tags
Description
Ory Polis, formerly known as BoxyHQ Jackson, bridges or proxies a SAML login flow to OAuth 2.0 or OpenID Connect. Versions prior to 26.2.0 contain a DOM-based Cross-Site Scripting (XSS) vulnerability in Ory Polis's login functionality. The application improperly trusts a URL parameter (`callbackUrl`), which is passed to `router.push`. An attacker can craft a malicious link that, when opened by an authenticated user (or an unauthenticated user that later logs in), performs a client-side redirect and executes arbitrary JavaScript in the context of their browser. This could lead to credential theft, internal network pivoting, and unauthorized actions performed on behalf of the victim. Version 26.2.0 contains a patch for the issue.
Analysis
DOM-based Cross-Site Scripting in Ory Polis (formerly BoxyHQ Jackson) SAML-to-OAuth bridge allows unauthenticated remote attackers to execute arbitrary JavaScript in victim browsers via crafted callbackUrl parameters. Versions prior to 26.2.0 are affected, with vendor-released patch available in version 26.2.0. …
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Remediation
Within 24 hours: Inventory all deployments of Ory Polis and identify current version numbers across development, staging, and production environments. Within 7 days: Upgrade all instances to version 26.2.0 or later; prioritize production and customer-facing authentication systems first. …
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External POC / Exploit Code
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