CVE-2021-43776highCWE-79

CVE-2021-43776: fallo de gravedad alta en backstage

XSS vulnerability in @backstage/plugin-auth-backend

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear backstage+ Monitorear @backstage/plugin-auth-backend

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

21Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 7.4epss 0.7%
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`.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Productos afectados
backstage · backstage
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