Keycloak vulnerable to cross-site scripting via the state parameter
A flaw was found in Keycloak 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final. When using `response_mode=form_post` it is possible to inject arbitrary Javascript-Code via the 'state'-parameter in the authentication URL. This allows an XSS-Attack upon succesfully login.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2018-14655US | medium5.4 | — | ||
A flaw was found in Keycloak 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final. When using 'response_mode=form_post' it is possible to inject arbitrary Javascript-Code via the 'state'-paramete… | ||||
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references
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2018:3592WEB
- https://access.redhat.com/errata/RHSA-2018:3593WEB
- https://access.redhat.com/errata/RHSA-2018:3595WEB
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14655WEB
- https://github.com/keycloak/keycloakPACKAGE
- https://nvd.nist.gov/vuln/detail/CVE-2018-14655ADVISORY
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