CVE-2026-12047

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 — and the related file-resolution and database-commit exception text — 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. The 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. The same unsanitised-error-into-JSON pattern was present across multiple sibling endpoints — 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 — all of which are now covered. Fix 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. This issue affects pgAdmin 4: from 6.6 before 9.16.

• CWE-79
• CWE-116
• CWE-79

• https://github.com/pgadmin-org/pgadmin4/commit/60d149864b5fdd99675754c7996637737a24fce3Patch
• https://github.com/pgadmin-org/pgadmin4/issues/10069Issue Tracking, Patch

Published

Jun 19, 2026

Last Modified

Jun 29, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-12039Docker Sandboxes (sbx) enforces an HTTP/S-only egress allowl…5.7
• CVE-2026-12041The Chatra Live Chat + ChatBot + Cart Saver plugin for WordP…4.4
• CVE-2026-12043Improper handling of HPACK dynamic table size updates in the…8.8
• CVE-2026-12044SQL injection in pgAdmin 4 across every dialog template that…8.8
• CVE-2026-12045Read-only transaction bypass in the pgAdmin 4 AI Assistant a…8.8
• CVE-2026-12046Two state-mutating endpoints in pgAdmin 4's SQL Editor bluep…9.5
• CVE-2026-12048Stored cross-site scripting in pgAdmin 4's error-rendering a…5.4
• CVE-2026-12049Open redirect in pgAdmin 4's multi-factor authentication flo…6.1
• CVE-2026-12050SQL injection in pgAdmin 4's named restore point endpoint (P…8.8
• CVE-2026-12051The USB DFU class implementation in Zephyr's new (experiment…4.6
• CVE-2026-12052The USB device-side CDC NCM class control-to-host handler us…5.2
• CVE-2026-12053GitLab has remediated an issue in GitLab EE affecting all ve…7.5