{"items":[{"id":"NVI-00018569","kind":"vulnerability","title":"Typebot.io has stored XSS via `javascript`: URI in text bubble links — bot author executes JS on visitors' browsers","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-hqmv-v56g-4m47","CVE-2026-39964"],"plain_summary":"GitHub lists this reviewed advisory for @typebot.io/js. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-3d91b1a73ae81ed0b8b9d61baaa3a040"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-05-26T18:00:27.000Z","value":"5.4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-3d91b1a73ae81ed0b8b9d61baaa3a040"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-3d91b1a73ae81ed0b8b9d61baaa3a040","url":"https://github.com/advisories/GHSA-hqmv-v56g-4m47","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-hqmv-v56g-4m47","publisher":"GitHub Advisory Database","observed_at":"2026-11-07T00:53:22.747Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-3d91b1a73ae81ed0b8b9d61baaa3a040"],"technology":"@typebot.io/js","known_exclusions":[],"conditions_summary":"### Summary\n\nThe Typebot viewer (`packages/embeds/js`) renders anchor tags from rich text bubble content without filtering the `javascript:` URI scheme. A bot author can set a link URL to `javascript:PAYLOAD`, which executes in the visitor's browser context when clicked. Since the viewer is typically embedded in a third-party site, the attacker's JavaScript runs in the host page's origin and can exfiltrate cookies and session tokens.\n\n### Details\n\nVulnerable file: `packages/embeds/js/src/features/blocks/bubbles/textBubble/components/plate/PlateBlock.tsx`\n\n```tsx\n// Line 32 — href set directly from stored bot content, no javascript: filtering\n\n  {elementDescendant.children[0].text}\n\n```\n\nSolidJS does not sanitize `href` attribute values — `javascript:` URIs pass through to the DOM unchanged.\n\nThe same issue exists in `ImageBubble.tsx` line 102 for image link wrapping.\n\n### Steps to Reproduce\n\n```\n1. Log in to Typebot as an authenticated user (any plan)\n2. Create a new bot\n3. Add a Text Bubble block\n4. In the rich text editor, type any link text and set the URL to:\n   javascript:fetch('https://att","public_affected_ranges":["< 0.10.1"]}],"null_published_at":"2026-11-07T07:07:39.857Z","source_updated_at":"2026-05-26T18:00:27.000Z","source_disclosed_at":"2026-05-26T18:00:24.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-07T00:53:22.747Z"}],"next_cursor":null,"snapshot_revision":"42594"}