When importing resources using Web Workers, error messages would distinguish the difference between <code>application/javascript</code> responses and non-script responses. This could have been abused to learn information cross-origin. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.
2022-12-22T20:15:19.773
2025-04-16T15:15:49.480
Modified
CVSSv3.1: 6.5 (MEDIUM)
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Application | mozilla | firefox | < 97.0 | Yes |
Application | mozilla | firefox_esr | < 91.6 | Yes |
Application | mozilla | thunderbird | < 91.6 | Yes |