Backstage 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`.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published: 2021-11-26T18:15:10
Updated: 2024-08-04T04:03:08.688Z
Reserved: 2021-11-16T00:00:00
Link: CVE-2021-43776
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2021-11-26T19:15:07.843
Modified: 2021-11-30T19:11:15.190
Link: CVE-2021-43776
Redhat
No data.