Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, UrlGenerator validates route parameters against a pattern built as ^ plus the raw requirement plus $; with ungrouped alternations, middle alternatives match as unanchored substrings, allowing a value such as //evil.com to satisfy a common locale requirement and generate a protocol-relative off-site URL. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.
Weakness
The product specifies a regular expression in a way that causes data to be improperly matched or compared.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Symfony | Sensiolabs | * | 5.4.52 (excluding) |
| Symfony | Sensiolabs | 6.0.0 (including) | 6.4.40 (excluding) |
| Symfony | Sensiolabs | 7.0.0 (including) | 7.4.12 (excluding) |
| Symfony | Sensiolabs | 8.0.0 (including) | 8.0.12 (excluding) |
| Symfony | Ubuntu | questing | * |
| Symfony | Ubuntu | upstream | * |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/15.html
- https://cwe.mitre.org/data/definitions/6.html
- https://cwe.mitre.org/data/definitions/79.html