CVE-2023-25741

MEDIUM

Firefox < 110.0 - Cross-Origin Image Size Leak via Drag-and-Drop

Title source: llm
STIX 2.1

Description

When dragging and dropping an image cross-origin, the image's size could potentially be leaked. This behavior was shipped in 109 and caused web compatibility problems as well as this security concern, so the behavior was disabled until further review. This vulnerability affects Firefox < 110.

References (4)

Core 4
Core References
Exploit, Issue Tracking, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1812611
Issue Tracking, Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1813376

Scores

CVSS v3 6.5
EPSS 0.0020
EPSS Percentile 41.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-203
Status published
Products (1)
mozilla/firefox < 110.0
Published Jun 02, 2023
Tracked Since Feb 18, 2026