index.php in ActiveCampaign KnowledgeBuilder 2.4 and earlier allows remote attackers to cause a denial of service (CPU consumption) via an invalid category parameter, which causes a large number of SQL queries to be processed.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Knowledgebuilder | Activecampaign | 2.4 (including) | 2.4 (including) |