CVE-2018-18511

mozilla: Cross-origin theft of images with ImageBitmapRenderingContext

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Severity

Moderate

Red Hat Product Security

4.3

CVSS 3.0

Review impact separately from score.

Published · February 12, 2019

Updated · November 22, 2025

Description

Cross-origin images can be read from a canvas element in violation of the same-origin policy using the transferFromImageBitmap method. Note: This only affects Firefox 65. Previous versions are unaffected.. This vulnerability affects Firefox < 65.0.1.

Statement

In general, this flaw cannot be exploited through email in Thunderbird because scripting is disabled when reading mail, but it is potentially a risk in browser or browser-like contexts.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 4.3
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CWE not specified