CVE-2018-1000531

HIGH

Inversoft Prime-jwt < 1.3.0 - Improper Input Validation

Title source: rule

Description

inversoft prime-jwt version prior to commit abb0d479389a2509f939452a6767dc424bb5e6ba contains a CWE-20 vulnerability in JWTDecoder.decode that can result in an incorrect signature validation of a JWT token. This attack can be exploitable when an attacker crafts a JWT token with a valid header using 'none' as algorithm and a body to requests it be validated. This vulnerability was fixed after commit abb0d479389a2509f939452a6767dc424bb5e6ba.

Exploits (3)

nomisec WORKING POC 1 stars
by realbatuhan · poc
https://github.com/realbatuhan/JWT-Bruteforcer
nomisec WORKING POC
by dawetmaster · poc
https://github.com/dawetmaster/CVE-2018-1000531-prime-jwt-vulnerable
nomisec WORKING POC
by andikahilmy · poc
https://github.com/andikahilmy/CVE-2018-1000531-prime-jwt-vulnerable

References (1)

Scores

CVSS v3 7.5
EPSS 0.0045
EPSS Percentile 63.6%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Details

CWE
CWE-20
Status published
Products (1)
inversoft/prime-jwt < 1.3.0
Published Jun 26, 2018
Tracked Since Feb 18, 2026