In PHP versions 7.2.x below 7.2.34, 7.3.x below 7.3.23 and 7.4.x below 7.4.11, when PHP is processing incoming HTTP cookie values, the cookie names are url-decoded. This may lead to cookies with prefixes like __Host confused with cookies that decode to such prefix, thus leading to an attacker being able to forge cookie which is supposed to be secure. See also CVE-2020-8184 for more information.
The product relies on the existence or values of cookies when performing security-critical operations, but it does not properly ensure that the setting is valid for the associated user.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Php | Php | 7.2.0 (including) | 7.2.34 (excluding) |
| Php | Php | 7.3.0 (including) | 7.3.23 (excluding) |
| Php | Php | 7.4.0 (including) | 7.4.11 (excluding) |