FortiWeb
CVE-2023-42784: Improper handling of syntactically invalid structure in FortiWeb
An improper handling of syntactically invalid structure in Fortinet FortiWeb at least verions 7.4.0 through 7.4.6 and 7.2.0 through 7.2.10 and 7.0.0 through 7.0.10 allows attacker to execute unauthorized code or commands via HTTP/S crafted requests.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| FortiWeb 7.4.0 to 7.4.7 | Upgrade past 7.4.7; see the advisory |
| FortiWeb 7.2.0 to 7.2.10 | Upgrade past 7.2.10; see the advisory |
| FortiWeb 7.0.0 to 7.0.10 | Upgrade past 7.0.10; see the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
An improper handling of syntactically invalid structure in Fortinet FortiWeb at least verions 7.4.0 through 7.4.6 and 7.2.0 through 7.2.10 and 7.0.0 through 7.0.10 allows attacker to execute unauthorized code or commands via HTTP/S crafted requests.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 10 Oct 2026.