CVE-2021-47663

8.1 highEPSS 0.5%

High (8.1). EPSS 0.5% chance of exploitation in the next 30 days.

Due to improper JSON Web Tokens implementation an unauthenticated remote attacker can guess a valid session ID and therefore impersonate a user to gain full access.

Severity

CVSS 3.1

8.1 high

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 40% of CVEs (scores of 2026-10-31)
CWE: CWE-613
Published: 2025-04-24
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://www.sciencedirect.com/science/article/pii/S2351978921001657

Check your stack JSON