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Stored cross-site scripting in OpenAM consent page via display name

Priority LOW 21CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

OpenAM before 16.1.4 contains a stored cross-site scripting flaw in the OAuth 2.0 consent page, where the display name is not encoded. A privileged attacker can place markup in a user's display name, which runs as script when the victim opens the consent page. The script can steal the OpenAM session cookie and impersonate the user.

Written with Claude Haiku 5.5 from the sources below · 2026-11-08

Description from the CNA

OpenAM before 16.1.4 contains a stored cross-site scripting vulnerability that allows privileged attackers to inject script by placing markup in a user's display name. When the victim reaches the OAuth 2.0 / OpenID Connect consent page, the unencoded name executes script that can steal the OpenAM session cookie to impersonate the user.

Why it matters now

EPSS 0.0018 7th percentileScored 2026-11-08
Fix Fixed OpenAM (OpenIdentityPlatform): 16.1.4

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenIdentityPlatformOpenAMbefore 16.1.416.1.4Patch availableCNA

Remediation

Upgrade OpenIdentityPlatform OpenAM to version 16.1.4 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-11-08

  • Fix · CNA OpenAM (OpenIdentityPlatform) Fixed in 16.1.4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    OpenIdentityPlatform OpenAM 16.1.4

    18 records Highest priority Priority MEDIUM 3 MEDIUM, 15 LOW

    Other records, highest priority first

    • TI-2026-86693 Session token disclosure in OpenAM notification WebSocketPriority MEDIUM 43
    • TI-2026-86692 Authentication bypass in OpenAM SAML login accepts unsigned assertionsPriority MEDIUM 41
    • TI-2026-86691 Privilege escalation in OpenAM via self-registration attribute bypassPriority MEDIUM 40

Timeline

  1. 2026-11-08 Threatist record created from CVE-2026-123539
  2. 2026-11-08 Alias added: GHSA-9j7x-qm62-f4xh

References

  • TI-2025-20332 OpenDJ Denial of Service (Dos) using alias loop CVSS 4.0HIGH 8.7
  • TI-2026-25836 Pre-Authentication Remote Code Execution via `jato.clientSession` Deserialization in OpenAM CVSS 4.0CRITICAL 9.3
  • TI-2026-44519 OpenAM: Unauthenticated Remote Code Execution via Class.forName in AuthXMLUtils.createCustomCallback CVSS 3.1CRITICAL 9.8
  • TI-2023-19079 User impersonation using SAMLv1.x SSO in Open Access Management CVSS 3.1CRITICAL 9.8
  • TI-2026-34275 OpenAM Authentication Bypass via MSISDN LDAP Injection CVSS 4.0CRITICAL 9.3
  • TI-2026-32901 OpenAM Pre-auth User Profile Tampering via Anonymous SOAP Authn in Liberty IDPP/Discovery Endpoints CVSS 4.0CRITICAL 9.3
See all 54 →

Sources