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CVE PROGRAM SOURCE RECORD6.1 Medium

CVE-2026-11854

Cross-Site Scripting via Authentication Endpoint Error Message in Multiple WSO2 Products

Description

The authentication endpoint generates an error message that includes reflected data directly from the request without sufficient sanitization or encoding. This allows an attacker to inject malicious scripts that can be executed in the context of a victim's browser. Successful exploitation enables an attacker to perform actions within the user's browser, such as redirecting the user to a malicious website, modifying the web page's user interface, or retrieving information. However, due to the httpOnly flag on session-related cookies, session hijacking or similar attacks are not possible.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

WSO2 WSO2 API Manager

Default version status: unaffected

  • 0 to < 3.2.0unknown
  • 3.2.0 to < 3.2.0.480affected
  • 3.2.1 to < 3.2.1.99affected
  • 4.1.0 to < 4.1.0.265affected
  • 4.2.0 to < 4.2.0.205affected
  • 4.3.0 to < 4.3.0.117affected
  • 4.4.0 to < 4.4.0.80affected
  • 4.5.0 to < 4.5.0.65affected
  • 4.6.0 to < 4.6.0.29affected
  • 4.7.0 to < 4.7.0.1affected

WSO2 WSO2 API Control Plane

Default version status: unaffected

  • 0 to < 4.5.0unknown
  • 4.5.0 to < 4.5.0.66affected
  • 4.6.0 to < 4.6.0.30affected
  • 4.7.0 to < 4.7.0.1affected

WSO2 WSO2 Identity Server

Default version status: unaffected

  • 0 to < 5.10.0unknown
  • 5.10.0 to < 5.10.0.399affected
  • 5.11.0 to < 5.11.0.446affected
  • 6.0.0 to < 6.0.0.272affected
  • 6.1.0 to < 6.1.0.274affected
  • 7.0.0 to < 7.0.0.155affected
  • 7.1.0 to < 7.1.0.65affected
  • 7.2.0 to < 7.2.0.26affected

References