By checking the result of calls to `window.open` with specifically set protocol handlers, an attacker could determine if the application which implements that protocol handler is installed. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.
2024-10-01T16:15:10.913
2025-03-18T20:15:25.150
Modified
CVSSv3.1: 5.3 (MEDIUM)
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Application | mozilla | firefox | < 131.0 | Yes |
Application | mozilla | firefox_esr | < 128.3.0 | Yes |
Application | mozilla | thunderbird | < 128.3 | Yes |
Application | mozilla | thunderbird | 129.0 | Yes |
Application | mozilla | thunderbird | 129.0 | Yes |
Application | mozilla | thunderbird | 129.0 | Yes |
Application | mozilla | thunderbird | 129.0 | Yes |
Application | mozilla | thunderbird | 129.0 | Yes |
Application | mozilla | thunderbird | 129.0 | Yes |