CVE-2026-113596 Details
Description
Webstudio before 0.256.0 contains a missing authorization vulnerability that allows authenticated users to read other users' project data via the publishedBuilds and findManyByIds tRPC procedures. Attackers who know another user's project UUID can query the /trpc handler to retrieve publish history, titles, domains, preview images, and latest builds.
A missing authorization vulnerability has been identified in Webstudio versions prior to 0.256.0. This vulnerability allows authenticated users to access other users' project data through the publishedBuilds and findManyByIds tRPC procedures. Attackers with knowledge of a user's project UUID can query the /trpc handler to obtain publish history, titles, domains, preview images, and the latest builds.
Users can update to Webstudio version 0.256.0 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 20, 2026CISA-ADP
Assessed Oct 23, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/webstudio-is/webstudio/blob/0.255.0/packages/dashboard/src/db/projects.ts | [email protected] | Source CodeVendor |
| https://github.com/webstudio-is/webstudio/blob/0.255.0/packages/project/src/trpc/project-router.ts | [email protected] | Source CodeVendor |
| https://github.com/webstudio-is/webstudio/commit/348d049ed2763d2b6c3e00319fa9086ca67c8aa6 | [email protected] | Source CodeVendor |
| https://github.com/webstudio-is/webstudio/issues/5621 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/webstudio-is/webstudio/releases/tag/0.256.0 | [email protected] | Release NotesVendor |
| https://www.vulncheck.com/advisories/webstudio-before-0.256.0-information-disclosure-via-trpc-publishedbuilds-and-findmanybyids | [email protected] | AdvisoryRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-639 | Authorization Bypass Through User-Controlled Key | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Webstudio | >= 0, < 0.256.0 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 23, 2026 | CVE Modified | CISA-ADP |
| Oct 20, 2026 | New CVE Received | [email protected] |