What is CVE-2025-59845?

CVE-2025-59845 is a high-severity vulnerability in Apollographql Embeddable-Explorer, classified under Origin Validation Error. CVSS score: 8.2/10. Published 2025-09-26.

How severe is CVE-2025-59845?

High severity. CVSS v3 base score is 8.2 out of 10.

Is CVE-2025-59845 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

CSRF in Apollographql Embeddable-Explorer

CVE-2025-59845

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.

EPSS: 0.001 (4.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N.

Affected products

Apollographql Embeddable-explorer — versions < 2.7.2, < 3.7.3

Weakness classification (CWE)

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2025-59845?: CVE-2025-59845 is a high-severity vulnerability in Apollographql Embeddable-Explorer, classified under Origin Validation Error. CVSS score: 8.2/10. Published 2025-09-26.
How severe is CVE-2025-59845?: High severity. CVSS v3 base score is 8.2 out of 10.
Is CVE-2025-59845 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.