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CVE-2026-44203: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in OpenIdentityPlatform OpenAM

0
High
VulnerabilityCVE-2026-44203cvecve-2026-44203cwe-79
Published: 09/15/2026 (09/15/2026, 09:48:07 UTC)
Source: CVE Database V5
Vendor/Project: OpenIdentityPlatform
Product: OpenAM

Description

Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the OAuth 2.0 and OpenID Connect authorization endpoint does not sufficiently encode user-supplied parameters before FormPostResponse.ftl and checkSession.ftl render them into HTML for the form_post response mode. An unauthenticated attacker can induce a user to open a crafted authorization request and execute script in the OpenAM origin. This issue is fixed in version 16.1.1.

CVSS v4.0

Score 8.3high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Active
Vuln. Confidentiality
Low
Vuln. Integrity
High
Vuln. Availability
None
Subsq. Confidentiality
Low
Subsq. Integrity
High
Subsq. Availability
None
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

Affected software

OpenIdentityPlatform

OpenAM

Affected versions
<16.1.1

Technical Details

Data Version
5.2
Assigner Short Name
GitHub_M
Date Reserved
2026-05-05T15:13:47.571Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6aa917bb55bf5e2cf5a33bf9

Added to database: 09/15/2026, 10:02:35 UTC

Last updated: 09/15/2026, 10:02:35 UTC

Views: 1

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