Vulnerability · Published Mar 9, 2026 · Assigned by GitHub_M
CVE-2026-30862Critical Stored XSS & Privilege Escalation in Appsmith
Critical 9.1
In plain English
A critical-severity cross-site scripting in appsmith from appsmithorg. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
Appsmith is a platform to build admin panels, internal tools, and dashboards. Prior to 1.96, a Critical Stored XSS vulnerability exists in the Table Widget (TableWidgetV2). The root cause is a lack of HTML sanitization in the React component rendering pipeline, allowing malicious attributes to be interpolated into the DOM. By leveraging the "Invite Users" feature, an attacker with a regular user account (user@gmail.com) can force a System Administrator to execute a high-privileged API call (/api/v1/admin/env), resulting in a Full Administrative Account Takeover. This vulnerability is fixed in 1.96.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| appsmithorg | appsmith | < 1.96 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
References
- https://github.com/appsmithorg/appsmith/security/advisories/GHSA-5hw4-whxv-6794 x_refsource_CONFIRM