CVE-2026-33331
HIGHoRPC: Stored XSS in OpenAPI Reference Plugin via unescaped JSON.stringify
Title source: cnaDescription
oRPC is an tool that helps build APIs that are end-to-end type-safe and adhere to OpenAPI standards. Prior to version 1.13.9, a stored cross-site scripting (XSS) vulnerability exists in the OpenAPI documentation generation of orpc. If an attacker can control any field within the OpenAPI specification (such as info.description), they can break out of the JSON context and execute arbitrary JavaScript when a user views the generated API documentation. This issue has been patched in version 1.13.9.
Exploits (1)
References (3)
Scores
CVSS v3
8.2
EPSS
0.0001
EPSS Percentile
2.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Details
CWE
CWE-79
Status
published
Products (3)
middleapi/orpc
< 1.13.9
orpc/openapi
0 - 1.13.9npm
orpc/orpc
< 1.13.9
Published
Mar 24, 2026
Tracked Since
Mar 25, 2026