Browserslist is a configuration tool for sharing target browsers and Node.js versions between front-end tools. Prior to 4.28.7, normalizeStats() in node.js, reached unconditionally through getStat() and loadStat() on every browserslist() call, processes untrusted browserslist-stats.json, opts.stats, and CLI --stats data with an unguarded for...in loop and plain-object bracket access and assignment, allowing inherited Object.prototype keys including __proto__, toString, valueOf, constructor, hasOwnProperty, and isPrototypeOf to cause an uncaught TypeError or modify the prototype of the returned normalized object. This issue is fixed in version 4.28.7.
| Vendor | Product | Versions |
|---|---|---|
| browserslist | browserslist | npm/browserslist: <= 4.28.6 |
Downstream vendors/products affected by this vulnerability
| Vendor | Product | Source | Confidence |
|---|---|---|---|
| atlassian | bitbucket | cert_advisory | 90% |
| atlassian | bamboo | cert_advisory | 90% |
| atlassian | jira | cert_advisory | 90% |
| atlassian | fisheye | cert_advisory | 90% |
| atlassian | confluence | cert_advisory | 90% |
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