title: Privilege escalation vulnerability when using HTML attachments
description: In Apache CouchDB, a malicious user with permission to create documents in a database is able to attach a HTML attachment to a document. If a CouchDB admin opens that attachment in a browser, e.g. via the CouchDB admin interface Fauxton, any JavaScript code embedded in that HTML attachment will be executed within the security context of that admin. A similar route is available with the already deprecated _show and _list functionality. This privilege escalation vulnerability allows an attacker to add or remove data in any database or make configuration changes. This issue affected Apache CouchDB prior to 3.1.2
problem types: Privilege escalation
affected:
{
product: Apache CouchDB
vendor: Apache Software Foundation
versions:
lessThan: 3.1.2, status: affected, version: Apache CouchDB, versionType: custom
}
{
product: IBM Cloudant
vendor: Apache Software Foundation
versions:
lessThan: 8201, status: affected, version: IBM Cloudant, versionType: custom
}
metrics:
other: [
content: {'other': 'low'}
type: unknown
]