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EUVD-2026-329819

EUVD-2026-329819

fkie_cve-2026-47387

NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, the shared form-view submit handler (packages/nc-gui/composables/useSharedFormViewStore.ts) in NocoDB writes the form's redirect_url to window.location.href after a same-host check that does not validate the URL scheme. A user with editor role (or above) on any base can plant a javascript: URL in the form's redirect_url; when an authenticated viewer opens the share-link and submits the form, the payload executes in the NocoDB origin and can read the session token from localStorage["nocodb-gui-v2"]. This vulnerability is fixed in 2026.05.1.

GHSA-hj85-ph9q-78jg — NocoDB: Stored Cross-Site Scripting via Form View Redirect URL

Affected: npm: nocodb

### Summary

The shared form-view submit handler in NocoDB writes the form's `redirect_url` to `window.location.href` after a same-host check that does not validate the URL scheme. A user with `editor` role (or above) on any base can plant a `javascript:` URL in the form's `redirect_url`; when an authenticated viewer opens the share-link and submits the form, the payload executes in the NocoDB origin and can read the session token from `localStorage["nocodb-gui-v2"]`.

### Details

The vulnerable sink is in `packages/nc-gui/composables/useSharedFormViewStore.ts`:

- `isValidRedirectUrl` validated only `typeof === 'string'` and non-empty trim — no scheme check. - The submit branch built an anchor element, compared `anchor.host` to `window.location.host`, and either pushState-reloaded (same host) or assigned `window.location.href = redirectUrl` (otherwise). - For non-network schemes such as `javascript:`, `data:`, `vbscript:`, and `file:`, `anchor.host` is the empty string, so the same-host check is false and the code falls into the external-redirect branch — executing the URL same-origin in the NocoDB tab.

The `redirect_url` field is writable by any user with `editor` role on the base via the form-view PATCH endpoint, and the value is returned verbatim by the public shared-view meta endpoint, so no further privilege is required to weaponize a public form share.

### Impact

- **Same-origin script execution in the viewer's NocoDB tab.** The payload runs in the NocoDB origin a…