CVE-2025-43865HIGH 8.2EPSS p49.7%
CVE-2025-43865CVE-2025-43865
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.
Scoring
| CVSS 3.1 | 8.2 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
| EPSS | 0.74% probability of exploitation · percentile 49.7% · 2026-06-19T12:03:05Z |
| Published | 2025-04-25 |
| Last modified | 2026-04-15 |
Underlying weaknesses· 1
References
- https://github.com/remix-run/react-router/blob/e6c53a0130559b4a9bd47f9cf76ea5b08a69868a/packages/react-router/lib/server-runtime/routes.ts#L87
- https://github.com/remix-run/react-router/commit/c84302972a152d851cf5dd859ff332b354b70111
- https://github.com/remix-run/react-router/security/advisories/GHSA-cpj6-fhp6-mr6j
1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Insufficient Verification of Data Authenticitycwe-345 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.