CVE-2026-35218

<!-- PoC for CVE-2026-35218 1. Login to Budibase as a user with Builder access. 2. Navigate to create a new Table or Automation. 3. In the 'Name' field, enter the following payload: --> <img src=x onerror=alert(document.domain)> <!-- 4. Save the entity. 5. Open the Command Palette using Ctrl+K. 6. The JavaScript alert will execute, demonstrating the XSS vulnerability. -->

{"cve": {"id": "CVE-2026-35218", "sourceIdentifier": "[email protected]", "published": "2026-04-03T16:16:41.977", "lastModified": "2026-04-08T21:18:49.067", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Budibase is an open-source low-code platform. Prior to version 3.32.5, Budibase's Builder Command Palette renders entity names (tables, views, queries, automations) using Svelte's {@html} directive without any sanitization. An authenticated user with Builder access can create a table, automation, view, or query whose name contains an HTML payload (e.g. <img src=x onerror=alert(document.domain)>). When any Builder-role user in the same workspace opens the Command Palette (Ctrl+K), the payload executes in their browser, stealing their session cookie and enabling full account takeover. This issue has been patched in version 3.32.5."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 5.8}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:budibase:budibase:*:*:*:*:*:*:*:*", "versionEndExcluding": "3.32.5", "matchCriteriaId": "500AAF3C-F561-4FCA-BC90-A6E771514C5D"}]}]}], "references": [{"url": "https://github.com/Budibase/budibase/commit/c9ccf0c19e5849f1bda96401aa33f97c99cd8cd6", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/Budibase/budibase/pull/18243", "source": "[email protected]", "tags": ["Issue Tracking", "Patch"]}, {"url": "https://github.com/Budibase/budibase/releases/tag/3.32.5", "source": "[email protected]", "tags": ["Product", "Release Notes"]}, {"url": "https://github.com/Budibase/budibase/security/advisories/GHSA-gp5x-2v54-v2q5", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}]}}