What is GHSA-mq58-m26g-46gp?

GHSA-mq58-m26g-46gp is a security advisory published by GitHub Security Advisories with High severity. Jenkins Email Extension Plugin 1933.v45cec755423f and earlier allows inlining images as `base64`...

Which CVE IDs does GHSA-mq58-m26g-46gp cover?

GHSA-mq58-m26g-46gp covers the following CVE IDs: CVE-2026-48920. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-mq58-m26g-46gp?

GHSA-mq58-m26g-46gp has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-mq58-m26g-46gpHighCVSS 8.8

Jenkins Email Extension Plugin 1933.v45cec755423f and earlier allows inlining images as `base64`...

Vendor

GitHub Security Advisories

Published

May 27, 2026

Last Modified

May 27, 2026

🔗 CVE IDs covered (1)

CVE-2026-48920 →

📋 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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-48920
https://www.jenkins.io/security/advisory/2026-05-27/#SECURITY-3705
https://github.com/advisories/GHSA-mq58-m26g-46gp