{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-12047", "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "state": "PUBLISHED", "assignerShortName": "PostgreSQL", "dateReserved": "2026-06-11T20:40:07.824Z", "datePublished": "2026-06-18T23:37:39.657Z", "dateUpdated": "2026-06-18T23:37:39.657Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "shortName": "PostgreSQL", "dateUpdated": "2026-06-18T23:37:39.657Z"}, "title": "pgAdmin 4: HTML injection in cloud verify_credentials / deploy endpoints via unsanitised SDK exception text", "affected": [{"vendor": "pgadmin.org", "product": "pgAdmin 4", "repo": "https://github.com/pgadmin-org/pgadmin4", "modules": ["Cloud Deployment", "Cloud RDS", "Cloud Azure", "Cloud Google"], "programFiles": ["https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/misc/cloud/__init__.py", "https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/misc/cloud/rds/__init__.py", "https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/misc/cloud/azure/__init__.py", "https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/misc/cloud/google/__init__.py", "https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/misc/cloud/static/js/CloudWizard.jsx"], "versions": [{"status": "affected", "version": "6.6", "lessThan": "9.16", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "HTML injection in pgAdmin 4's cloud deployment module. The verify_credentials, deploy, regions, and update-server endpoints under /rds/, /azure/, /google/, and the top-level /cloud/ blueprint propagated AWS / Azure / Google SDK exception text \u2014 and the related file-resolution and database-commit exception text \u2014 into the JSON response body (the info and errormsg fields) without HTML-encoding. The Cloud Wizard frontend rendered these strings through html-react-parser, so an attacker-influenced exception message embedded structural HTML directly into the wizard's DOM.\n\nThe reported entry point is /rds/verify_credentials/. An authenticated pgAdmin user submits a crafted access_key whose value contains an <iframe/src=...> payload; AWS STS rejects the credential with an IncompleteSignature exception whose text quotes the access_key verbatim; the pgAdmin backend forwards that text into the JSON info field; the Cloud Wizard's FormFooterMessage parses it as HTML. The browser fetches the iframe's src from an attacker-controlled host, and JavaScript executing inside the cross-origin iframe writes to parent.location, redirecting the victim's pgAdmin tab. Because the injection renders inside pgAdmin's own interface, X-Frame-Options and Content-Security-Policy frame-ancestors do not mitigate it. Baseline impact is self-targeted (the same user who supplied the payload sees the injection); escalation against other authenticated users requires an additional cross-site request-forgery primitive capable of submitting the malformed credential request with a valid X-pgA-CSRFToken in the victim's browser context.\n\nThe same unsanitised-error-into-JSON pattern was present across multiple sibling endpoints \u2014 Azure's check_cluster_name_availability, every Google endpoint that surfaces SDK errors (verification_ack, projects, regions, instance_types, database_versions, the verify_credentials path-resolution branches), the central /deploy endpoint that bubbles str(e) from deploy_on_rds / deploy_on_azure / deploy_on_google, and update_cloud_server which surfaces the str(e) from a failing db.session.commit \u2014 all of which are now covered.\n\nFix HTML-escapes every external/SDK exception string at the endpoint sink via a new shared sanitize_external_text helper (HTML escape with control-character strip), promoted out of the psycopg3 driver into web/pgadmin/utils/text_sanitize.py. The Cloud Wizard frontend additionally renders its FormFooterMessage in plain-text mode for backend-derived strings, so the value is never parsed as HTML even if a future sink forgets the escape.\n\nThis issue affects pgAdmin 4: from 6.6 before 9.16."}], "references": [{"url": "https://github.com/pgadmin-org/pgadmin4/issues/10069", "tags": ["issue-tracking"]}, {"url": "https://github.com/pgadmin-org/pgadmin4/commit/60d149864b5fdd99675754c7996637737a24fce3", "tags": ["patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "Self-XSS only. The same authenticated pgAdmin user that submits the crafted cloud credential is the one whose browser renders the echoed error -- there is no third-party attacker driving a distinct victim, so the confused-deputy elements (S:C / C:H confidentiality uplift) do not apply. The frontend DOMPurify layer added by #10068 already neutralises the in-browser exploit; this fix is defence in depth that ensures non-browser JSON consumers (audit logs, scripted API clients) never see the raw markup either. Scored as I:L for that residual escape only; S:U because no authority is crossed.\n\nCross-user escalation would require an independent CSRF primitive capable of submitting the malformed credential request with a valid X-pgA-CSRFToken in the victim's browser context. That is not part of this defect."}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseSeverity": "LOW", "baseScore": 3.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "Same reasoning as CVSS 3.1 -- self-XSS, no third-party attacker, no scope change. VI:L for the defence-in-depth backend escape that prevents the raw markup from reaching non-browser API consumers; no other impact."}], "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N", "baseScore": 4.8, "baseSeverity": "MEDIUM"}}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "cweId": "CWE-79", "type": "CWE"}, {"lang": "en", "description": "CWE-116 Improper Encoding or Escaping of Output", "cweId": "CWE-116", "type": "CWE"}]}], "credits": [{"lang": "en", "value": "Fernando Bortotti <[email protected]>", "type": "finder"}, {"lang": "en", "value": "Ashesh Vashi <[email protected]>", "type": "remediation developer"}], "source": {"discovery": "EXTERNAL"}}}}

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