| Package | Affected versions | Patched versions |
|---|---|---|
| org.jenkins-ci.plugins:email-ext | < 1933.1935.v276319e3cc47 | 1933.1935.v276319e3cc47 |
| email extension | = 1933.v45cec755423f≤ 1925.v1598902b_58dd |
Jenkins Email Extension Plugin 1933.v45cec755423f and earlier includes a feature that allows inlining images as base64 in email content by setting the data-inline attribute. No restrictions are placed on the image URLs that can be inlined.
This allows attackers able to control the email content to specify file: URLs for images to read arbitrary files from the Jenkins controller filesystem.
The feature allowing inlining images as base64 in email content by setting the data-inline attribute is removed from Email Extension Plugin 1933.1935.v276319e3cc47.
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