CVE-2021-38295
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
How to fix CVE-2021-38295
To remediate CVE-2021-38295, upgrade the affected package to a fixed version below.
- —upgrade to 3.1.2 or later
Is CVE-2021-38295 being exploited?
Moderate — EPSS is 9.0%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 0, < 3.1.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |