VULNERABILITY INTELLIGENCE

CVE-2026-48920

CVSS score8.8 HIGH
EPSS probability0.29%
CISA KEVNot currently listed
Published2026-05-27
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

Jenkins Email Extension Plugin 1933.v45cec755423f and earlier allows inlining images as `base64` in email content by setting the `data-inline` attribute, without restrictions on the image URLs that can be inlined, allowing attackers able to control the email content to specify `file:` URLs for images to read arbitrary files from the Jenkins controller filesystem.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-73

Primary references