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CVE-2021-29455

Missing validation of JWT signature in `grassrootza/grassroot-platform`

CVSS 7.5 HIGHEPSS 0.8%CWE-347
Vexday Risk Score
21Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS 7.5EPSS 0.8%KEV nãoPoC Nuclei Metasploit Patch
Ciclo de vida
19 abr 2021Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
Grassroot Platform is an application to make it faster, cheaper and easier to persistently organize and mobilize people in low-income communities. Grassroot Platform before master deployment as of 2021-04-16 did not properly verify the signature of JSON Web Tokens when refreshing an existing JWT. This allows to forge a valid JWT. The problem has been patched in version 1.3.1 by deprecating the JWT refresh function, which was an overdue deprecation regardless (the "refresh" flow is no longer used).
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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