🛡️ CVE-2023-35926
🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-94 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Backstage is an open platform for building developer portals. The Backstage scaffolder-backend plugin uses a templating library that requires sandbox, as it by design allows for code injection. The library used for this sandbox so far has been `vm2`, but in light of several past vulnerabilities and existing vulnerabilities that may not have a fix, the plugin has switched to using a different sandbox library. A malicious actor with write access to a registered scaffolder template could manipulate the template in a way that allows for remote code execution on the scaffolder-backend instance. This was only exploitable in the template YAML definition itself and not by user input data. This is vulnerability is fixed in version 1.15.0 of `@backstage/plugin-scaffolder-backend`.

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE CWE-94
Public Exploit ✅ No
Source NVD
Published 2023-06-21
Updated 2026-06-08
Modified 2023-11-08

Affected Packages

Software From version Fixed in
@backstage/plugin-scaffolder-backend — —
backstage — 1.15.0

Similar Threats

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