Vulnerability Description
Backstage is an open platform for building developer portals, and techdocs-common contains common functionalities for Backstage's TechDocs. In versions of `@backstage/tehdocs-common` prior to 0.6.4, a malicious internal actor is able to upload documentation content with malicious scripts. These scripts would normally be sanitized by the TechDocs frontend, but by tricking a user to visit the content via the TechDocs API, the content sanitazion will be bypassed. If the TechDocs API is hosted on the same origin as the Backstage app or other backend plugins, this may give access to sensitive data. The ability to upload malicious content may be limited by internal code review processes, unless the chosen TechDocs deployment method is to use an object store and the actor has access to upload files directly to that store. The vulnerability is patched in the `0.6.4` release of `@backstage/techdocs-common`.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linuxfoundation | \@Backstage\/Techdocs-Common | < 0.6.4 |
Related Weaknesses (CWE)
References
- https://github.com/backstage/backstage/commit/aad98c544e59369901fe9e0a85f6357644PatchThird Party Advisory
- https://github.com/backstage/backstage/releases/tag/release-2021-06-03PatchThird Party Advisory
- https://github.com/backstage/backstage/security/advisories/GHSA-pwhf-39xg-4rxwThird Party Advisory
- https://github.com/backstage/backstage/commit/aad98c544e59369901fe9e0a85f6357644PatchThird Party Advisory
- https://github.com/backstage/backstage/releases/tag/release-2021-06-03PatchThird Party Advisory
- https://github.com/backstage/backstage/security/advisories/GHSA-pwhf-39xg-4rxwThird Party Advisory
FAQ
What is CVE-2021-32660?
CVE-2021-32660 is a vulnerability with a CVSS score of 6.8 (MEDIUM). Backstage is an open platform for building developer portals, and techdocs-common contains common functionalities for Backstage's TechDocs. In versions of `@backstage/tehdocs-common` prior to 0.6.4, a...
How severe is CVE-2021-32660?
CVE-2021-32660 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-32660?
Check the references section above for vendor advisories and patch information. Affected products include: Linuxfoundation \@Backstage\/Techdocs-Common.