Vulnerability · Published Jul 13, 2022 · Assigned by mitre
CVE-2022-32114
High 8.8
In plain English
A high-severity security flaw in the @strapi/strapi package (npm). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.0% (higher than 81% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
An unrestricted file upload vulnerability in the Add New Assets function of Strapi 4.1.12 allows attackers to conduct XSS attacks via a crafted PDF file. NOTE: the project documentation suggests that a user with the Media Library "Create (upload)" permission is supposed to be able to upload PDF files containing JavaScript, and that all files in a public assets folder are accessible to the outside world (unless the filename begins with a dot character). The administrator can choose to allow only image, video, and audio files (i.e., not PDF) if desired.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @strapi/strapi | no fix listed | GHSA-4vm8-j95f-j6v5 |
Affected products (as reported)
References
- https://github.com/bypazs/strapi
- https://grimthereaperteam.medium.com/strapi-v4-1-12-unrestricted-file-upload-b993bfd07e4e
- https://docs.strapi.io/dev-docs/configurations/public-assets
- https://docs.strapi.io/user-docs/users-roles-permissions/configuring-administrator-roles
- https://github.com/strapi/strapi/blob/d9277d616b4478a3839e79e47330a4aaf167a2f1/packages/core/upload/admin/src/components/MediaLibraryInput/index.js#L33
- https://github.com/strapi/strapi/blob/d9277d616b4478a3839e79e47330a4aaf167a2f1/packages/core/content-type-builder/admin/src/components/AllowedTypesSelect/index.js#L14