CVE-2025-59845

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

State: Published
Severity: 8.2 High
Published: Sep 26, 2025
Updated: Sep 29, 2025
Reserved: Sep 22, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	8.2 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N	GitHub_M

Weaknesses

CWE-346 Origin Validation Error
CWE-352 Cross-Site Request Forgery (CSRF)

Affected Products

Product	Versions
embeddable-explorerapollographql	< 2.7.2Affected < 3.7.3Affected

References

https://github.com/apollographql/embeddable-explorer/security/advisories/GHSA-w87v-7w53-wwxv

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.