GitHub Advisoryadvisory · Maven
GHSA-fq9h-c788-fx73 OpenAM has pre-auth Reflected XSS in OAuth2 / OIDC response_mode=form_post via state parameter (FormPostResponse.ftl)
HIGH
Official page ↗
- Aliases
- CVE-2026-44203
- Ecosystem
- Maven
- Packages
- org.openidentityplatform.openam:openam-oauth2
- Severity
- High
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N
- Weaknesses
- CWE-79
- Reviewed
- 2026-06-22
Affected packages
• Maven org.openidentityplatform.openam:openam-oauth2: >= 13.0.0, < 16.1.1 → fixed in 16.1.1
Description
Summary
The OAuth 2.0 / OpenID Connect authorization endpoint does not sufficiently sanitize certain user-supplied parameters before incorporating them into the HTML response generated for the `form_post` response mode. This may allow an attacker to inject content into the rendered page in the context of the OpenAM origin.
Related
Alias · CVE (1)
- CVE-2026-44203 Open Access Management (OpenAM) is an access management solution. vulnerability
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-fq9h-c788-fx73 web
- https://nvd.nist.gov/vuln/detail/CVE-2026-44203 advisory
- https://github.com/OpenIdentityPlatform/OpenAM/commit/078bd4754905f5130eaa7bbe45f958eaeb7fd0d7 web
- https://github.com/OpenIdentityPlatform/OpenAM package
- https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.1 web