{"id":"GHSA-w87v-7w53-wwxv","revision":null,"records":[{"revision":"2cab8585e5b743f8bf97a54a0995e879","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-59845","aliases":[],"title":"Apollo Embedded Sandbox and Explorer vulnerable to CSRF via window.postMessage origin-validation bypass","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.","state":0,"publishedAt":"2025-09-26T22:38:57.35+00:00","modifiedAt":"2025-09-29T15:02:04.057+00:00","affected":[{"ecosystem":"Vendor product","name":"embeddable-explorer","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"apollographql\",\n                    \"product\": \"embeddable-explorer\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 2.7.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"< 3.7.3\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N","score":8.2,"severity":"HIGH"}],"references":["https://github.com/apollographql/embeddable-explorer/security/advisories/GHSA-w87v-7w53-wwxv"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-59845","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-59845","identifiers":["CVE-2025-59845"]},"retained":false,"historicalAffected":[]},{"revision":"131051083f0746c0ac9e49fb7afa7c43","observedAt":"2026-11-09T03:15:59.373+00:00","statement":{"source":"euvd","id":"EUVD-2025-31347","aliases":["CVE-2025-59845","GHSA-w87v-7w53-wwxv"],"title":"Apollo Studio Embeddable Explorer & Embeddable Sandbox are website embeddable software solutions from Apollo GraphQL. 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This issue has been patched in Apollo Sandbox version 2.7.2 and Apollo Explorer version 3.7.3.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N","score":8.2,"severity":null}],"references":["https://github.com/apollographql/embeddable-explorer/security/advisories/GHSA-w87v-7w53-wwxv"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-31347","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 26, 2025, 10:38:57 PM","dateUpdated":"Sep 29, 2025, 3:02:04 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. 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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.\n\n#### Who is impacted\n\nAnyone embedding [Apollo Sandbox](https://www.apollographql.com/docs/graphos/platform/sandbox#embedding-sandbox) or [Apollo Explorer](https://www.apollographql.com/docs/graphos/platform/explorer/embed) in their website may have been affected by this vulnerability.\n\n- Users who embed Apollo Sandbox or Apollo Explorer in their websites via npm packages (`@apollo/sandbox` and `@apollo/explorer`) or direct links to Apollo’s CDN.\n- Users running Apollo Router with [embedded Sandbox enabled](https://www.apollographql.com/docs/graphos/routing/configuration/yaml#sandbox). This served the vulnerable code from Apollo’s CDN.\n- Users running Apollo Server with embedded Sandbox or Explorer enabled. Embedded Sandbox is enabled by default when `NODE_ENV` is not set to `production`, and embedded Sandbox and Explorer can also be enabled in production mode via [landing page plugins](https://www.apollographql.com/docs/apollo-server/api/plugin/landing-pages). This served the vulnerable code from Apollo’s CDN.\n\nWhile all of the above methods of serving Embedded Sandbox and Explorer were vulnerable, Apollo has already updated its CDN to remove all vulnerable versions. **Unless you install the npm package `@apollo/sandbox` or `@apollo/explorer` directly into your website’s front end code, no action is necessary: the vulnerability has already been mitigated.**\n\nUsers who do not embed Sandbox/Explorer on their websites, or who only run Apollo Router/Server with production defaults were never impacted. The use of non-embedded Sandbox and Explorer hosted on [studio.apollographql.com](http://studio.apollographql.com/) is not vulnerable.\n\n\n#### Scope of impact\n\nThe vulnerability allows a malicious website to open the vulnerable website in a new window and force it to send GraphQL requests to its origin. The requests themselves are not \"cross-origin\" as they are directly issued from the vulnerable website, but their contents are dictated by the malicious website.\n\nThe malicious website cannot read the responses to the GraphQL operations, but the operations may be mutations with side effects (such as using credentials to update app-specific data access controls). These operations can contain the browser user's cookies, and the vulnerable website may be on a private network otherwise inaccessible to the attacker. Operations sent this way look and exactly like legitimate operations sent by a human interacting with the embedded Sandbox or Explorer.\n\n### Patches\n\nThe issue has been fixed by adding strict origin validation to DOM message handling.\n\n- `@apollo/sandbox`: Patched in v2.7.2 and later\n- `@apollo/explorer`: Patched in v3.7.3 and later\n- Apollo’s CDN embeds have been updated to patched versions. This protects embeds based on `<script>` tags pointing to Apollo’s CDN, as well as the Apollo Router and Apollo Server features. No action is necessary to adopt the fix in this case.\n\nIf you manually edited the `<script>` tag provided by the Explorer or Sandbox UI to replace the version string `_latest`, `v2`, or `v3` with a specific git-style SHA, you may find that the Explorer or Sandbox UI does not currently load. To fix this, use a supported URL instead, as documented for [Sandbox](https://www.apollographql.com/docs/graphos/platform/sandbox#embedding-sandbox) or [Explorer](https://www.apollographql.com/docs/graphos/platform/explorer/embed). (The third-party Go GraphQL server [gqlgen](https://github.com/99designs/gqlgen) provides a function ApolloSandboxHandler which serves an unsupported URL and was broken by our mitigations; upgrading to [gqlgen v0.17.81](https://github.com/99designs/gqlgen/releases/tag/v0.17.81) will resolve this issue.)\n\n### Workarounds\n\n- If you are using Apollo Server, ensure `NODE_ENV=production` is set in production to avoid unintentionally serving embedded Sandbox.\n- Customers not using embedded Sandbox/Explorer are not affected and do not need to take action.\n\n\n### References\n\n- [Apollo Server CSRF Documentation](https://www.apollographql.com/docs/apollo-server/security/cors#preventing-cross-site-request-forgery-csrf)\n- [Apollo Router Sandbox Configuration](https://www.apollographql.com/docs/graphos/routing/configuration/yaml#sandbox)\n- [Apollo Explorer Embed Documentation](https://www.apollographql.com/docs/graphos/platform/explorer/embed)","state":0,"publishedAt":"2025-09-26T15:00:05+00:00","modifiedAt":"2025-09-29T14:03:00+00:00","affected":[{"ecosystem":"npm","name":"@apollo/sandbox","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"2.7.2"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"@apollo/explorer","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"3.7.3"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/apollographql/embeddable-explorer/security/advisories/GHSA-w87v-7w53-wwxv","https://nvd.nist.gov/vuln/detail/CVE-2025-59845","https://github.com/apollographql/embeddable-explorer"],"sourceUrl":"https://github.com/advisories/GHSA-w87v-7w53-wwxv","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-w87v-7w53-wwxv","identifiers":["GHSA-w87v-7w53-wwxv","CVE-2025-59845"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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