Vulnerability Description
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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Grassroot | Grassroot Platform | < 1.3.1 |
Related Weaknesses (CWE)
References
- https://github.com/grassrootza/grassroot-platform/ProductThird Party Advisory
- https://github.com/grassrootza/grassroot-platform/commit/a2e6e885f8183a066d938cfPatchThird Party Advisory
- https://github.com/grassrootza/grassroot-platform/security/advisories/GHSA-f65w-Third Party Advisory
- https://github.com/grassrootza/grassroot-platform/ProductThird Party Advisory
- https://github.com/grassrootza/grassroot-platform/commit/a2e6e885f8183a066d938cfPatchThird Party Advisory
- https://github.com/grassrootza/grassroot-platform/security/advisories/GHSA-f65w-Third Party Advisory
FAQ
What is CVE-2021-29455?
CVE-2021-29455 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 202...
How severe is CVE-2021-29455?
CVE-2021-29455 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-29455?
Check the references section above for vendor advisories and patch information. Affected products include: Grassroot Grassroot Platform.