CVE-2023-6717
Keycloak Cross-site Scripting (XSS) via assertion consumer service URL in SAML POST-binding flow
6.0
MEDIUM
CVSS 3.1
EPSS 0.10%
Description
Keycloak allows arbitrary URLs as SAML Assertion Consumer Service POST Binding URL (ACS), including JavaScript URIs (javascript:). Allowing JavaScript URIs in combination with HTML forms leads to JavaScript evaluation in the context of the embedding origin on form submission. #### Acknowledgements: Special thanks to Lauritz Holtmann for reporting this issue and helping us improve our project.
How to fix CVE-2023-6717
To remediate CVE-2023-6717, upgrade the affected package to a fixed version below.
- —upgrade to 22.0.10 or later
Is CVE-2023-6717 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 22.0.10
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.0 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:L |