CVE-2026-11854
Cross-Site Scripting via Authentication Endpoint Error Message in Multiple WSO2 Products
MEDIUM 6.1
At a glance
- Source
- CVE.org
- State
- PUBLISHED
- Published
- Updated
- Assigner
- WSO2
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.
Weaknesses (CWE)
- CWE-79 — Improper Neutralization of Input During Web Page Generation
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | WSO2 |
European references
- ENISA EUVD · EUVD-2026-112399
- GCVE · GCVE-0-2026-11854
Affected products
| Product | Versions |
|---|---|
| WSO2 · WSO2 API Manager | unknown 0 < 3.2.0 ; affected 3.2.0 < 3.2.0.480 ; affected 3.2.1 < 3.2.1.99 ; affected 4.1.0 < 4.1.0.265 ; affected 4.2.0 < 4.2.0.205 ; affected 4.3.0 < 4.3.0.117 |
| WSO2 · WSO2 API Control Plane | unknown 0 < 4.5.0 ; affected 4.5.0 < 4.5.0.66 ; affected 4.6.0 < 4.6.0.30 ; affected 4.7.0 < 4.7.0.1 |
| WSO2 · WSO2 Identity Server | unknown 0 < 5.10.0 ; affected 5.10.0 < 5.10.0.399 ; affected 5.11.0 < 5.11.0.446 ; affected 6.0.0 < 6.0.0.272 ; affected 6.1.0 < 6.1.0.274 ; affected 7.0.0 < 7.0.0.155 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |