CVE-2021-36787
Cross-site Scripting in the femanager TYPO3 extension
EPSS 1.3%
Description
The extension allows by default to upload SVG files when a logged in frontend user uploads a new profile image. This may lead to Cross-Site Scripting, when the uploaded SVG image is used as is on the website. Note: If SVG uploads are required, it is recommended to use the TYPO3 extension svg_sanitizer (added to TYPO3 core since versions 9.5.28, 10.4.18 and 11.3.0) to prevent upload of malicious SVG files or to set up a strict Content Security Policy for the destination folder of uploaded images.
How to fix CVE-2021-36787
To remediate CVE-2021-36787, upgrade the affected package to a fixed version below.
- —upgrade to 5.5.1 or later
Is CVE-2021-36787 being exploited?
Low — EPSS is 1.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 5.5.1