A relative path traversal vulnerability [CWE-23] in FortiWeb version 7.0.1 and below, 6.4 all versions, 6.3 all versions, 6.2 all versions may allow an authenticated user to obtain unauthorized access to files and data via specifically crafted web requests.

A double free in Fortinet FortiWeb version 7.0.0 through 7.0.3 may allows attacker to execute unauthorized code or commands via specially crafted commands

A stack-based buffer overflow vulnerability [CWE-121] in FortiWeb version 7.0.1 and earlier, 6.4 all versions, version 6.3.19 and earlier may allow a privileged attacker to execute arbitrary code or commands via specifically crafted CLI `execute backup-local rename` and `execute backup-local show` operations.

A stack-based buffer overflow vulnerability [CWE-121] in the CA sign functionality of FortiWeb version 7.0.1 and below, 6.4 all versions, version 6.3.19 and below may allow an authenticated attacker to achieve arbitrary code execution via specifically crafted password.

An improper neutralization of special elements used in an os command ('OS Command Injection') [CWE-78] in FortiWeb 7.0.0 through 7.0.1, 6.3.0 through 6.3.19, 6.4 all versions may allow an authenticated attacker to execute arbitrary shell code as `root` user via crafted HTTP requests.

A relative path traversal vulnerability [CWE-23] in FortiWeb 7.0.0 through 7.0.1, 6.3.6 through 6.3.18, 6.4 all versions may allow an authenticated attacker to obtain unauthorized access to files and data via specifically crafted HTTP GET requests.

A path traversal vulnerability [CWE-23] in the API of FortiWeb 7.0.0 through 7.0.1, 6.3.0 through 6.3.19, 6.4 all versions, 6.2 all versions, 6.1 all versions, 6.0 all versions may allow an authenticated attacker to retrieve specific parts of files from the underlying file system via specially crafted web requests.

An improper verification of cryptographic signature vulnerability [CWE-347] in FortiWeb 6.4 all versions, 6.3.16 and below, 6.2 all versions, 6.1 all versions, 6.0 all versions; FortiOS 7.0.3 and below, 6.4.8 and below, 6.2 all versions, 6.0 all versions; FortiSwitch 7.0.3 and below, 6.4.10 and below, 6.2 all versions, 6.0 all versions; FortiProxy 7.0.1 and below, 2.0.7 and below, 1.2 all versions, 1.1 all versions, 1.0 all versions may allow an attacker to decrypt portions of the administrative session management cookie if able to intercept the latter.

A condition for session fixation vulnerability [CWE-384] in the session management of FortiWeb versions 6.4 all versions, 6.3.0 through 6.3.16, 6.2.0 through 6.2.6, 6.1.0 through 6.1.2, 6.0.0 through 6.0.7, 5.9.0 through 5.9.1 may allow a remote, unauthenticated attacker to infer the session identifier of other users and possibly usurp their session.

Multiple stack-based buffer overflow vulnerabilities [CWE-121] in the proxy daemon of FortiWeb 5.x all versions, 6.0.7 and below, 6.1.2 and below, 6.2.6 and below, 6.3.16 and below, 6.4 all versions may allow an unauthenticated remote attacker to achieve arbitrary code execution via specifically crafted HTTP requests.