CVE-2025-59845 HIGH

CVE-2025-59845: Apollo Embedded Sandbox and Explorer vulnerable to CSRF via window.postMessage origin-validation bypass

Vendor Apollographql
Product embeddable-explorer
Weakness CWE-346 · Origin validation
Published September 26, 2025
Last update September 29, 2025
View on NVD All CVEs

CVSS base score

8.2/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Apollo Studio Embeddable Explorer & Embeddable Sandbox are website embeddable software solutions from Apollo GraphQL. Prior to Apollo Sandbox version 2.7.2 and Apollo Explorer version 3.7.3, a cross-site request forgery (CSRF) vulnerability was identified. The vulnerability arises from missing origin validation in the client-side code that handles window.postMessage events. A malicious website can send forged messages to the embedding page, causing the victim’s browser to execute arbitrary GraphQL queries or mutations against their GraphQL server while authenticated with the victim’s cookies. This issue has been patched in Apollo Sandbox version 2.7.2 and Apollo Explorer version 3.7.3.

Key dates

02Disclosure timeline

September 26, 2025 CVE published
September 29, 2025 Record updated