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CVEs-PoC/2021/CVE-2021-43540.md
0xMarcio cb00e1339f Update CVE list 2025-09-29 21:09
2025-09-29 21:09:30 +02:00

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CVE-2021-43540

Description

WebExtensions with the correct permissions were able to create and install ServiceWorkers for third-party websites that would not have been uninstalled with the extension. This vulnerability affects Firefox < 95.

POC

Reference

Github

No PoCs found on GitHub currently.

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