Backstage: Improper repository path validation in a Scaffolder backend module

[ Description ]Official description

Backstage is an open framework for building developer portals. Prior to 0.3.25, the @backstage/plugin-scaffolder-backend-module-confluence-to-markdown package is affected by improper repository path validation in a scaffolder backend module. An authenticated user who can execute an affected template and control its repository file location may cause generated content to be written outside the task workspace, within locations writable by the Backstage backend process. This issue is fixed in version 0.3.25.

[ Fixes ]Fixes and patches

• @backstage/plugin-scaffolder-backend-module-confluence-to-markdown 0.3.25Fixed version · GitHub Advisories · npm package @backstage/plugin-scaffolder-backend-module-confluence-to-markdown: upgrade to 0.3.25 or later (affected < 0.3.25)
• Patch on github.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
• Patch on github.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
• Patch on github.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD

[ Packages ]Affected open-source packages

• @backstage/plugin-scaffolder-backend-module-confluence-to-markdown npmAffected < 0.3.25 · fixed in 0.3.25 · GHSA-2cmg-v53w-8xfp

[ References ]References

• github.com/backstage/backstage/commit/5f0000c1d0af05571e357926b3fa33a453337ff0Patch
• github.com/backstage/backstage/releases/tag/v1.54.6PatchRelease Notes
• github.com/backstage/backstage/security/advisories/GHSA-2cmg-v53w-8xfpMitigationPatchVendor Advisory