Medium

Script injection

  • Disclosed: 04.06.2021
  • Updated: 11.10.2026 10:22

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

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Affected software

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PlatformPackageVulnerable versionsFixed in
npm package @backstage/plugin-techdocs < 0.9.5 0.9.5

References

CVSS score 6.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-434, CWE-77
Platform
npm
Package
@backstage/plugin-techdocs
Disclosed
04.06.2021
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-gg96-f8wr-p89f - CC BY 4.0

Vulnerability history: @backstage/plugin-techdocs

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

This is the only known vulnerability of this package.

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