CVE-2023-36806
Cross site scripting via input unit widget
Description
### Impact Authenticated users can inject malicious code in widgets with units, which is then executed both in the element preview (back end) and on the website (front end). ### Patches Update to Contao 4.9.42, 4.13.28 or 5.1.10. ### Workarounds Disable login for all untrusted back end users. ### References https://contao.org/en/security-advisories/cross-site-scripting-in-widgets-with-units ### For more information If you have any questions or comments about this advisory, open an issue in [contao/contao](https://github.com/contao/contao/issues/new/choose). ### Credits Thanks to Christian Pöschl and Fabian Brenner from usd AG for reporting this vulnerability.
How to fix CVE-2023-36806
To remediate CVE-2023-36806, upgrade the affected package to a fixed version below.
- —upgrade to 4.9.42 or later
Is CVE-2023-36806 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 4.0.0, < 4.9.42
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.6 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L |