Arbitrary File Read Vulnerability in Firefox and Thunderbird

CVE-2023-23598 · MEDIUM Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Due to the Firefox GTK wrapper code's use of text/plain for drag data and GTK treating all text/plain MIMEs containing file URLs as being dragged a website could arbitrarily read a file via a call to <code>DataTransfer.setData</code>. This vulnerability affects Firefox < 109, Thunderbird < 102.7, and Firefox ESR < 102.7.

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