1## autogenerated on 2026-04-15 13:30:23
2name: crowdsecurity/vpatch-CVE-2026-21643
3description: 'Detects SQL injection in Fortinet FortiClientEMS via the Site HTTP header on /api/v1/init_consts.'
4rules:
5  - and:
6      - zones:
7          - URI
8        transform:
9          - lowercase
10        match:
11          type: contains
12          value: /api/v1/init_consts
13      - zones:
14          - HEADERS
15        variables:
16          - site
17        transform:
18          - lowercase
19        match:
20          type: contains
21          value: ';'
22
23labels:
24  type: exploit
25  service: http
26  confidence: 3
27  spoofable: 0
28  behavior: 'http:exploit'
29  label: 'FortiClientEMS - SQLI'
30  classification:
31    - cve.CVE-2026-21643
32    - attack.T1190
33    - cwe.CWE-89
34