Riskcovery

CVE-2026-11854

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

State
Published
Severity
6.1 Medium
Published
Oct 28, 2026
Updated
Oct 29, 2026
Reserved
Jun 10, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.16.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NWSO2

Weaknesses

  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

ProductVersions
WSO2 API ManagerWSO2
  • before 3.2.0Unknown
  • 3.2.0 to before 3.2.0.480Affected
  • 3.2.1 to before 3.2.1.99Affected
  • 4.1.0 to before 4.1.0.265Affected
  • 4.2.0 to before 4.2.0.205Affected
  • 4.3.0 to before 4.3.0.117Affected
  • 4.4.0 to before 4.4.0.80Affected
  • 4.5.0 to before 4.5.0.65Affected
  • 4.6.0 to before 4.6.0.29Affected
  • 4.7.0 to before 4.7.0.1Affected
WSO2 API Control PlaneWSO2
  • before 4.5.0Unknown
  • 4.5.0 to before 4.5.0.66Affected
  • 4.6.0 to before 4.6.0.30Affected
  • 4.7.0 to before 4.7.0.1Affected
WSO2 Identity ServerWSO2
  • before 5.10.0Unknown
  • 5.10.0 to before 5.10.0.399Affected
  • 5.11.0 to before 5.11.0.446Affected
  • 6.0.0 to before 6.0.0.272Affected
  • 6.1.0 to before 6.1.0.274Affected
  • 7.0.0 to before 7.0.0.155Affected
  • 7.1.0 to before 7.1.0.65Affected
  • 7.2.0 to before 7.2.0.26Affected

References

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