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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWdnOTYtZjh3ci1wODlm

Script injection

Impact

A malicious internal actor can potentially upload documentation content with malicious scripts by embedding the script within an object element. This may give access to sensitive data when other users visit that same documentation page.

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.

Patches

The vulnerability is patched in the 0.9.5 release of @backstage/plugin-techdocs.

For more information

If you have any questions or comments about this advisory:

Permalink: https://github.com/advisories/GHSA-gg96-f8wr-p89f
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWdnOTYtZjh3ci1wODlm
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 3 years ago
Updated: about 2 years ago


CVSS Score: 6.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

EPSS Percentage: 0.0017
EPSS Percentile: 0.545

Identifiers: GHSA-gg96-f8wr-p89f, CVE-2021-32661
References: Repository: https://github.com/backstage/backstage
Blast Radius: 17.8

Affected Packages

npm:@backstage/plugin-techdocs
Dependent packages: 7
Dependent repositories: 410
Downloads: 105,630 last month
Affected Version Ranges: < 0.9.5
Fixed in: 0.9.5
All affected versions: 0.1.1, 0.2.0, 0.2.1, 0.2.2, 0.2.3, 0.3.0, 0.3.1, 0.4.0, 0.5.0, 0.5.1, 0.5.2, 0.5.3, 0.5.4, 0.5.5, 0.5.6, 0.5.7, 0.5.8, 0.6.0, 0.6.1, 0.6.2, 0.7.0, 0.7.1, 0.7.2, 0.8.0, 0.9.0, 0.9.1, 0.9.2, 0.9.3, 0.9.4
All unaffected versions: 0.9.5, 0.9.6, 0.9.7, 0.9.8, 0.9.9, 0.10.0, 0.10.1, 0.10.2, 0.10.3, 0.10.4, 0.11.0, 0.11.1, 0.11.2, 0.11.3, 0.12.0, 0.12.1, 0.12.2, 0.12.3, 0.12.4, 0.12.5, 0.12.6, 0.12.7, 0.12.8, 0.12.9, 0.12.10, 0.12.11, 0.12.12, 0.12.13, 0.12.14, 0.13.0, 0.13.1, 0.13.2, 0.13.3, 0.13.4, 0.14.0, 0.15.0, 0.15.1, 1.0.0, 1.0.1, 1.1.0, 1.1.1, 1.2.0, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.5.0, 1.6.0, 1.6.1, 1.6.2, 1.6.3, 1.6.4, 1.6.5, 1.6.6, 1.6.7, 1.6.8, 1.7.0, 1.8.0, 1.9.0, 1.9.1, 1.9.2, 1.9.3, 1.10.0, 1.10.1, 1.10.2, 1.10.3, 1.10.4, 1.10.5, 1.10.6, 1.10.7, 1.10.8, 1.10.9, 1.10.10, 1.11.0, 1.11.1, 1.11.2, 1.12.0