XSS in Remix-Run React-Router
CVE-2026-53668
React Router is a router for React. In versions 6.30.2 through 6.30.4 and 7.9.6 through 7.12.0, applications that allow open redirects are vulnerable to XSS. An attacker could craft a malicious link that redirects users to an unexpected external site or that exploits an XSS vector.This issue has been fixed in version 7.13.0.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.003 (20.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N.
Affected products
- Remix-run React-router — versions >= 6.30.2, <= 6.30.4, >= 7.9.6, < 7.13.0
- Shopify React-router
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-53668?
- CVE-2026-53668 is a medium-severity vulnerability in Remix-Run React-Router, classified under Cross-site Scripting. CVSS score: 6.9/10. Published 2026-07-27.
- How severe is CVE-2026-53668?
- Medium severity. CVSS v3 base score is 6.9 out of 10.