Vulnerability intelligence

CVE-2026-12048

Stored cross-site scripting in pgAdmin 4's error-rendering and plan-node-rendering paths. Text returned by a PostgreSQL server (ErrorResponse messages, including object names quoted back inside relation-does-not-exist errors and inside EXPLAIN Recheck Cond / Exact Heap Blocks fields) was passed verbatim through html-react-parser at every user-facing sink — the notifier toasts, FormFooterMessage / FormInput help and error areas, FormNote, ModalProvider AlertContent and confirmDelete, ToolErrorView, the Explain visualiser's NodeText panel, the SQL editor confirm dialogs, ConfirmSaveContent, PreferencesHelper modal alerts, and SelectThemes helper text.

CVSS Score

9.3

Critical

EPSS — Exploit Probability

0.0%

Riskier than 0% of all CVEs

Exploitation

Not in CISA KEV

No federal exploitation record

Remediation

Patch available

Vendor fix published

NVD entry Vendor patch PoC / advisory

1 article across 1 outlet · first covered Jun 22, 2026 · latest Jun 22, 2026

Coverage timeline

Critical pgAdmin 4 flaws expose RCE risk, urgent patch advised
securityonline.info · Jun 22, 2026