Critical Stored XSS & Privilege Escalation in Appsmith
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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 ([email protected]) 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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| appsmithorg | appsmith | before 1.96 | 1.96 | Patch available | CNA |
- appsmith Vendorappsmithorg Affected before 1.96 Fixed in 1.96 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:appsmith:appsmith:*:*:*:*:*:*:*:* | before 1.96 | Vulnerable | appsmithorg |
- cpe:2.3:a:appsmith:appsmith:*:*:*:*:*:*:*:* Versions before 1.96 Vulnerable ·appsmithorg
Remediation
- Fix · CNA appsmith (appsmithorg) Fixed in 1.96
Timeline
- 2026-10-02 Threatist record created from CVE-2026-30862
More appsmithorg Appsmith vulnerabilities
- TI-2026-40018 Appsmith: Caddy admin API exposed without authentication CVSS 3.1CRITICAL 9.9
- TI-2026-18312 Account Takeover Vulnerability in Appsmith CVSS 3.1CRITICAL 9.7
- TI-2026-36948 Appsmith: RCE via Supervisord XML-RPC Admin Interface Exposed via /supervisor Caddy Route CVSS 4.0HIGH 8.9
- TI-2024-34357 AppSmith Community 1.8.3 before 1.46 allows SSRF via New DataSource for application/json… CVSS 3.1HIGH 8.5
- TI-2022-03744 Server-Side Request Forgery (SSRF) in appsmithorg/appsmith CVSS 3.1MEDIUM 6.5
- TI-2026-06406 Cross-site scripting in appsmithorg Appsmith CVSS 3.1MEDIUM 6.3
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences