5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
6.7 Medium
AI Score
Confidence
High
0.026 Low
EPSS
Percentile
90.4%
Stampit Web uses guessable id values for online stamp purchases, which allows remote attackers to cause a denial of service (stamp invalidation) via a SOAP request with an id value for a stamp that has not yet been printed.