CVE-2026-113596

Webstudio before 0.256.0 Information Disclosure via tRPC publishedBuilds and findManyByIds

LOW
3.1
CVSS Score
Published: October 20, 2026 at 03:40 PM UTC
Updated: October 23, 2026 at 02:16 AM UTC
1 product affected across 1 vendorWebstudio

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Severity
LOW3.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.1LOWVulnCheck
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-639

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