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CVE-2026-30862

Appsmith cross-site scripting (XSS)

9.0 CRITICALPublic exploitEPSS 0.46%
  1. Published10 Mar 2026

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 ([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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Affected products

Appsmith< 1.96

Remediation

Fixed in
Appsmith≥ 1.96

References

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Frequently asked

Is CVE-2026-30862 being actively exploited?

CVE-2026-30862 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.46%.

How severe is CVE-2026-30862?

CVE-2026-30862 has a CVSS 3.1 base score of 9.0, rated critical. EPSS estimates a 0.46% probability of exploitation.

Which products are affected by CVE-2026-30862?

Affected products include Appsmith.

How do I fix CVE-2026-30862?

Upgrade affected software to a fixed version, for example Appsmith 1.96 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-30862 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.