CVE-2023-23598

MEDIUM
MEDIUM Priority: 0.04 BB Relevance: 63/100
Published: 2023-06-02 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Unchanged
C: High
I: None
A: None

Description

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 `DataTransfer.setData`. This vulnerability affects Firefox < 109, Firefox ESR < 102.7, and Thunderbird < 102.7.

Affected Software (3)

VendorProductVersion
mozilla firefox < 109.0
mozilla firefox_esr < 102.7
mozilla thunderbird < 102.7

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS — Exploitation Probability

0.64%
Raw Score 0.006410
Percentile 50.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00641
2026-10-28
0.00641

Intelligence Sources

nvd ref →