CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
EPSS
Percentile
85.3%
The confirm_create_account function in the account-creation feature in
token.cgi in Bugzilla 2.x through 4.0.x before 4.0.15, 4.1.x and 4.2.x
before 4.2.11, 4.3.x and 4.4.x before 4.4.6, and 4.5.x before 4.5.6 does
not specify a scalar context for the realname parameter, which allows
remote attackers to create accounts with unverified e-mail addresses by
sending three realname values with realname=login_name as the second, as
demonstrated by selecting an e-mail address with a domain name for which
group privileges are automatically granted.