WWW::OAuth 1.000 and earlier for Perl uses the rand() function as the default source of entropy, which is not cryptographically secure, for cryptographic functions.
Exploitability
AV:NAC:LPR:NUI:NScope
S:UImpact
C:LI:LA:L7.3/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LOther