CVE-2021-43783

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-43783
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-43783.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-43783
Aliases
Related
Published
2021-11-29T20:15:08.077Z
Modified
2025-11-14T12:40:32.795123Z
Severity
  • 8.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L CVSS Calculator
Summary
[none]
Details

@backstage/plugin-scaffolder-backend is the backend for the default Backstage software templates. In affected versions a malicious actor with write access to a registered scaffolder template is able to manipulate the template in a way that writes files to arbitrary paths on the scaffolder-backend host instance. This vulnerability can in some situation also be exploited through user input when executing a template, meaning you do not need write access to the templates. This method will not allow the attacker to control the contents of the injected file however, unless the template is also crafted in a specific way that gives control of the file contents. This vulnerability is fixed in version 0.15.14 of the @backstage/plugin-scaffolder-backend. This attack is mitigated by restricting access and requiring reviews when registering or modifying scaffolder templates.

References

Affected packages

Git / github.com/backstage/backstage

Affected ranges

Type
GIT
Repo
https://github.com/backstage/backstage
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f9352ab606367cd9efc6ff048915c70ed3013b7f

Affected versions

Other

cli-old-cache-watch
hackweek-demo
release-2021-01-07
release-2021-01-08
release-2021-01-09
release-2021-01-14
release-2021-01-18
release-2021-01-20
release-2021-01-21
release-2021-01-28
release-2021-01-29
release-2021-02-01
release-2021-02-03
release-2021-02-05
release-2021-02-11
release-2021-02-16
release-2021-02-18
release-2021-02-23
release-2021-03-04
release-2021-03-09
release-2021-03-11
release-2021-03-16
release-2021-03-17
release-2021-03-18
release-2021-03-19
release-2021-03-25
release-2021-03-31
release-2021-04-08
release-2021-04-13
release-2021-04-15
release-2021-04-21
release-2021-04-22
release-2021-04-29
release-2021-05-04
release-2021-05-06
release-2021-05-10
release-2021-05-11
release-2021-05-12
release-2021-05-17
release-2021-05-20
release-2021-05-27
release-2021-05-31
release-2021-06-01
release-2021-06-03
release-2021-06-10
release-2021-06-17
release-2021-06-18
release-2021-06-21
release-2021-06-24
release-2021-06-28
release-2021-07-01
release-2021-07-07
release-2021-07-08
release-2021-07-14
release-2021-07-15
release-2021-07-16
release-2021-07-22
release-2021-07-29
release-2021-08-03
release-2021-08-05
release-2021-08-11
release-2021-08-12
release-2021-08-17
release-2021-08-19
release-2021-08-20
release-2021-08-26
release-2021-08-31
release-2021-09-02
release-2021-09-09
release-2021-09-14
release-2021-09-16
release-2021-09-17
release-2021-09-21
release-2021-09-23
release-2021-09-28
release-2021-09-30
release-2021-1-7
release-2021-10-04
release-2021-10-06
release-2021-10-07
release-2021-10-11
release-2021-10-13
release-2021-10-14
release-2021-10-16
release-2021-10-19
release-2021-10-21
release-2021-10-22
release-2021-10-28
release-2021-10-29
release-2021-11-08
release-2021-11-11
release-2021-11-12
release-2021-11-17
release-2021-11-18
release-2021-11-19

release-2021-01-14.*

release-2021-01-14.1

release-2021-01-21.*

release-2021-01-21.1

release-2021-03-11.*

release-2021-03-11.1

release-2021-03-31.*

release-2021-03-31.1

release-2021-04-22.*

release-2021-04-22.1

release-2021-05-12.*

release-2021-05-12.1

release-2021-05-20.*

release-2021-05-20.1

release-2021-06-10.*

release-2021-06-10.1

release-2021-06-17.*

release-2021-06-17.1

release-2021-06-21.*

release-2021-06-21.1

release-2021-07-14.*

release-2021-07-14.1

release-2021-10-29.*

release-2021-10-29.1

release-2021-11-11.*

release-2021-11-11.1

release-2021-11-17.*

release-2021-11-17.1

v0.*

v0.1.0
v0.1.1
v0.1.1-alpha.0
v0.1.1-alpha.1
v0.1.1-alpha.10
v0.1.1-alpha.11
v0.1.1-alpha.12
v0.1.1-alpha.13
v0.1.1-alpha.15
v0.1.1-alpha.16
v0.1.1-alpha.17
v0.1.1-alpha.18
v0.1.1-alpha.19
v0.1.1-alpha.2
v0.1.1-alpha.20
v0.1.1-alpha.21
v0.1.1-alpha.22
v0.1.1-alpha.23
v0.1.1-alpha.24
v0.1.1-alpha.25
v0.1.1-alpha.26
v0.1.1-alpha.3
v0.1.1-alpha.4
v0.1.1-alpha.5
v0.1.1-alpha.6
v0.1.1-alpha.7
v0.1.1-alpha.8
v0.1.1-alpha.9
v0.10.0
v0.11.0
v0.11.1
v0.11.2
v0.11.3
v0.12.0
v0.13.0
v0.13.1
v0.14.0
v0.15.0
v0.16.0
v0.16.1
v0.17.0
v0.17.1
v0.17.2
v0.17.3
v0.18.0
v0.18.1
v0.19.0
v0.2.0
v0.20.0
v0.20.1
v0.21.0
v0.21.1
v0.22.0
v0.22.1
v0.22.2
v0.23.0
v0.24.0
v0.24.1
v0.25.0
v0.25.1
v0.25.2
v0.25.3
v0.26.0
v0.26.1
v0.27.0
v0.28.0
v0.29.0
v0.29.1
v0.29.2
v0.3.0
v0.3.1
v0.3.2
v0.30.0
v0.30.1
v0.31.0
v0.32.0
v0.33.0
v0.33.1
v0.33.2
v0.33.3
v0.34.0
v0.34.1
v0.35.0
v0.35.1
v0.36.0
v0.36.1
v0.36.2
v0.37.0
v0.37.1
v0.38.0
v0.39.0
v0.39.1
v0.4.0
v0.4.1
v0.4.2
v0.4.3
v0.4.4
v0.40.0
v0.40.1
v0.41.0
v0.41.1
v0.42.0
v0.43.0
v0.44.0
v0.44.1
v0.45.0
v0.46.0
v0.46.1
v0.47.0
v0.47.1
v0.47.2
v0.48.0
v0.48.1
v0.49.0
v0.5.0
v0.50.0
v0.50.1
v0.50.2
v0.51.0
v0.51.1
v0.51.2
v0.52.0
v0.52.1
v0.53.0
v0.53.1
v0.53.2
v0.53.3
v0.54.0
v0.54.1
v0.54.2
v0.54.3
v0.54.4
v0.55.0
v0.55.1
v0.6.0
v0.7.0
v0.8.0
v0.8.1
v0.8.2
v0.9.0

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-43783.json"