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CVE-2025-43865

React Router allows pre-render data spoofing on React-Router framework mode

Published: Apr 25, 2025Updated: Apr 29, 2025 Sources: CVE List NVD GHSACWE-345
8.2HIGH
NVD MITRE
EPSS Score
0.7%
Top 50.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

React Router is a router for React. In versions on the 7.0 branch prior to version 7.5.2, it's possible to modify pre-rendered data by adding a header to the request. This allows to completely spoof its contents and modify all the values ​​of the data object passed to the HTML. This issue has been patched in version 7.5.2.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:LA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:HAvailability
High
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Weaknesses

CWE-345

Affected Products

react-routerremix-run
Library
OSS Libraries / web-framework
react-routernpmOSS Libraries
remix-runoss-projectOSS Libraries
npmpackage-ecosystemOSS Libraries

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://github.com/remix-run/react-router/blob/e6c53a0130559b4a9bd47f9cf76ea5b08a69868a/packages/react-router/lib/server-runtime/routes.ts#L87
github.com
https://github.com/remix-run/react-router/commit/c84302972a152d851cf5dd859ff332b354b70111
github.com
https://github.com/remix-run/react-router/security/advisories/GHSA-cpj6-fhp6-mr6j
github.com
and 2 more references View all →

Timeline

Published
Apr 25, 2025
Last Updated
Apr 29, 2025

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