CVE-2021-43776

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Summary

CVECVE-2021-43776
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-11-26 19:15:00 UTC
Updated2021-11-30 19:11:00 UTC
DescriptionBackstage is an open platform for building developer portals. In affected versions the auth-backend plugin allows a malicious actor to trick another user into visiting a vulnerable URL that executes an XSS attack. This attack can potentially allow the attacker to exfiltrate access tokens or other secrets from the user's browser. The default CSP does prevent this attack, but it is expected that some deployments have these policies disabled due to incompatibilities. This is vulnerability is patched in version `0.4.9` of `@backstage/plugin-auth-backend`.

Risk And Classification

Problem Types: CWE-79

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Linuxfoundation Auth Backend All All All All

References

ReferenceSourceLinkTags
Reflected XSS vulnerability in @backstage/plugin-auth-backend · Advisory · backstage/backstage · GitHub CONFIRM github.com
backstage/plugins/auth-backend at master · backstage/backstage · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
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