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Fencer Vulns
critical 9.8

CVE-2023-33371 json

Control ID IDSecure 4.7.26.0 and prior uses a hardcoded cryptographic key in order to sign and verify JWT session tokens, allowing attacker…

published 2023-08-03 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-37534

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

Control ID IDSecure 4.7.26.0 and prior uses a hardcoded cryptographic key in order to sign and verify JWT session tokens, allowing attackers to sign arbitrary session tokens and bypass authentication.

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.86% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness
  • CWE-798 Use of Hard-coded Credentials

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.